Singulair and intense headaches

I was on Singulair for approx 3 years with zero side effects other than actually being healthy for the first time in my life - no chronic acute bronchitis episodes, no calling in sick to work. Then I switched jobs and HMOs - they immediately took me off of my Singulair and Combivent and put me on Qvar and Proair. Quess what? I began wheezing and sniffling. So they prescribed Claritin and Nasarel on top of the other two. Still not working. So now after a bout with antibiotics and steroids they have prescribed Flonase and over the counter Zyrtec. I have BEGGED to go back on Singulair repeatedly. I have offered to pay the $120/month out of pocket. Now I really am depressed and angry all the time - as well as having intense headaches, tremors, chest pain, insomnia, jitteryness then fatigue then jitteryness again = all because I can't get the stupid Singulair.

I took this medicine only twice, and both times suffered the most intense headaches I have ever had - what I would imagine a migrane might feel. I was also incredibly hyper and agitated from the medicine - I will NEVER take this again...

I am a paediatrician in private practice. I recently put an 8yr old boy with moderte to severe asthma on singulair. He is also epileptic and is on lamictin. After starting the singulair he experienced intense headaches, dizziness and blurred vision.
The headches were associated with vomiting. I have subsequently stopped the singulair but was really surprised by these side effects. Could it be related to his epilepsy? I have been using singulair for many years but this is the first case that I have seen with these side effects.