I'm an adult female with severe sinus polyps, adult onset asthma ...

I'm an adult female with severe sinus polyps, adult onset asthma and allergies. Initially Singular seemed to be helping my nasal polyps, when nothing else helped in any way. I made several attempts to use Singular, and proved repeatedly that this medication did, in fact, cause me severe side effects - even when I used a childs dosage. While using an adult rx for Singular, I immediately began experiencing horrific nightmares (which I have never had in my entire life). I also had extreme knife like pains in both ears, which made me feel like I had a severe ear infection, chest pains where it felt like a cinder block was lying on my chest, and migraine like headaches (which I've never had). I stopped the medication after about a week and the nightmares went completely away, but it took me a couple weeks to recover completely because I developed what felt like a respiratory infection and ear infection as soon as I stopped using it. Because Singular seemed to slightly reduce my nasal polyps on my first attempt, my allergist suggested I try using it again - almost a year later. When I first began, I completely forgot about the negative side effect and why I stopped using it in the first place, and just gave it another try. I again experienced the same horrific nightmares, ear pains, but this time got a strange rash/cluster of blisters under both eyelids which my eye doctor confirmed was an allergic reaction to something I was using. Singular was the only medication I had changed. My allergist thought I should give it longer to see if the symptoms went away (because they probably weren't caused by this medication - and were due to something else ???). Fearing going to sleep, I decided to try taking the medication in the morning instead of night, and had my physician reduce my rx to a childs dosage (5mg). The nightmares lessened, and the blisters under my eyelids went down, so I continued using Singular for about a years time. What I didn't realize, was that over this time I was becoming depressed, fatigued, and became easily agitated and short-tempered, which was very different since I was normally a very happy, energetic mom. My nasal breathing seemed to be slightly improved, so I just kept taking the medication - not realizing that it was causing all of the other problems I was experiencing. I became so fatigued and depressed feeling, that all I wanted to do after I got my kids off to school was to sleep until it was time to pick them up in the afternoon. I was also experiencing stomach pains for unknown reasons. I was certainly not myself. I didn't realize that while I was using Singular I had lost complete interest in everything that I normally loved in my life. And please note I'm 45 years old, and I was using a childs dosage. ( I can only imagine what this medication does to a child. )Fortunately for me, I accidentally forgot to refill my prescription for a few days and noticed that my depression started to improve. I decided not to refill my rx and stay off it to see if I continued to improve - and I have. Unfortunately, even though my depression has all but gone away, I'm experiencing symptoms which must be from withdrawal of the medication - and they are just as scary as the side effects were. Now that I'm not taking Singulair any more (and I've made no other medication changes), I have extreme fatigue beyond belief, and ache everywhere. My muscles are in such pain that I'm having difficulty doing things I would normally do. I have extreme weakness in both arms and legs, and my back aches almost constantly. And strangly enough, my asthma and allergies have slightly improved since stopping Singular - I thought for sure my allergies/asthma would worsen when I stopped completely - but they did not. All I can say is - please trust what your body is telling you - even if your physician tells you otherwise, and do not use this medication or any other if you experience adverse side effects to it. I would never give this medication to a child that wasn't old enough to tell me what he/she was experiencing, and would document the childs temperament, ailments if any, and what changed once the medication was started - and discontinue it immediately if even one adverse side effects occurred. One last note - I am still experiencing vision problems, which I feel are due to using this medication. Hopefully, no other permanent damage to my body will result from the Singular that I've already used - and I hope you Singular users will recover completely too from its dangerous side effects. Wishing you the best of health!