Singulair and cardiologist

I'm not sure if this is related to Singulair 5mg. chewable, but now that I've been reading everyone's experiences, I fear that it may. My 7 yr. old has been taking Singulair 5mg chewable tablets these past 2 years. He takes it during the months of Sept. to October. His pulmonologist has not determined whether or not he is an asthmatic or not. When he would get a common cold, he would almost always cough as if he had the croup and he would need to use a nebulizer with Pulmicort. The Singulair worked great. He hasn't needed the Pulmicort for almost a year now and colds this year were limited to two minor sniffles.

My son just started experiencing sharp pains on the left side of his chest. They would come quick and hard and disappear within 2-3 seconds. We immediately rushed him to the Emergency Room. He had experienced 5 quick episodes during Sunday, February 10th. The first 3 were spaced out about 20 minutes apart. the fourth was about an hour apart and the 5th and last occurred 2 hours after. The ER conducted a chest x-ray and an EKG, Neither showed any abnormalities. He felt a quick pain today, which is Tuesday. He has an appointment with a cardiologist on Wednesday morning. Now that I have read a number of postings, I am frightened. My son has not only experienced pains in his chest on the left side, but night sweats. occasional leg cramps. nightmares and is extra sensitive to emotional situations.
I'm pulling him off Singulair. Last night was his last dosage.

Oh, wow. I've been taking Singulair for a couple years off and on, though definitely on for the past 6 months. I've had:
heart palpitations,
headaches,
eye-twitches,
all over back-muscle pain,
bowel/indigestion issues
anxiety attacks
and general tiredness.
it's freaked me out so much I've been to a few doctors including a cardiologist. they all found NOTHING. It wasn't until tonight that I thought to suspect Singulair. I'm going to go off it and see if it helps, though from the looks of the websites I'm finding- I think it will. It definitely has helped my asthma but it's not worth the side effects. Maybe some people don't have a problem with it....

This is only the 3rd day I'm taking Singulair. Tonight when I got home I quickly did a search for Singulair side effects. Here is what I had been feeling.

1) Extreme deep neuromuscular pain in my neck and shoulders and extreme pulling muscle tension along the length of my spine.

2) Thoughts of paranoia.

3) Extreme irritability

4) Heart palpitations

5) General feeling of malaise

6) Feeling that there is some toxic substance in my body ...

It is the Singulair!

7) Very very bad case of indigestion and upset stomach

I have been having problems with my heart pounding (much like when a person feels very scared or startled). My dr. referred me to a cardiologist where I underwent several tests and everything checked out fine. In the meantime I developed severe leg pain and hip pain. I was beginning to think that there was no help and I would always feel bad. Someone I know was experiencing the heart pounding and I realized our only commonality was Singulair. I decided to stop the Singulair (been on it for 2 months) to see what happened. The very next day the pounding had subsided. My leg pain is lessening. All of this has changed within three days. I'm beginning to feel more like my old self. This posting site was of great help to me.

A few weeks ago I reported many of the side effects so many of you have reported on. After several blood tests with my endocronologist, results came back normal. I have now been off Singulair for about five weeks and have noted only one improvement thus far: less headaches (especially after drinking alcohol--that being defined as one or two beers/glasses of wine. I think this has to do with less constriction of blood vessels in the brain).

I'm returning to my cardiologist next week. I'm thinking I may have what is called Postural Orthostatic Tachycardia Syndrome which can be described as a periodic low blood pressure disease that causes dizziness, faintness, ect. Many other symptoms of this disease have been mentioned on this site (including Shy-Drager Syndrome which is most scary). Doctors don't really know what brings on Pots but one suspicion is viral/bacterial or drug induced...jury is completely out on this, however).

Most notable is a sudden change in bp after stooping and standing up--bp drops, palpitations begin, extreme fatigue generally follows.

A table tilt test should help with the diagnosis.

Question: Are any of you familiar with Pots and/or have any of you experienced similar symptoms?

Thanks.

Fortuna

UPDATE: Today is the second day that I haven't taken Singulair and I feel 100% better. I am no longer experiencing the panic attacks, hallucinations, shortness of breath, ear ringing, leg cramps, etc. I went to the doctor on the 23rd and he was reluctant to think that any of this was caused by taking Singulair. I am now convinced that it was, since I haven't felt any of the symptoms I was having for the last few months. I am going to a cardiologist on Aug 1st and will have to wear a heart monitor to "rule out" a heart condition. I also have to get my ears checked because my doctor thinks this could be an inner ear problem. I will go through with all of these check-ups just to make sure that I don't have any underlying medical issues. Seeing how quickly my symptoms have stopped after going off of Singulair makes me totally convinced that this is what was causing this in the first place. I am greatful that I found this site and read all of the comments from people having similar symptoms!

Active physically fit male 54 years of age.

Have spent a lot of time and money with cardiologist and endocronologist to determine what has been wrong with me. All heart related tests negative; will see endo this week to see if hypoglycimia is the culprit, although blood sugar levels appear well within the normal range.

Biggest complaint is periodic fatigue, heart palpitations, panic attacks and abdominal and leg jerking. Also experience spells of near fainting associated with heart palpitations. Decided to stop taking daily dose of Singulair yesterday. Have been on this drug for the past 5-6 years. After reading this web site (and many others) hope this works. Will advise.