Future thanks symptoms and conditions

I have a three year old son who has severe allergies. He's been taking singulair for 2 years on & off just in the allergy season. He started taking, singulair again in the beginning of April. One morning he woke up and both eyes were really swollen and red, I called his doctor's office and told them i thought he had pink eye, after 2 different drops and no change I brought him into the doctor's to see if it could be his allergies, and they agreed and started him on Zyrtec. I still was not impressed with the results so i brought him back yet again to see if we could see a specialist. Instead they put him on nasonex to try.
In the beginning of March I started to see a change in my usual happy fun loving son. He was scared to sleep in his bed, waking up in the middle of the night from bad dreams, uncontrollable screaming fits that would last up to an hour, saying he wants a Boo Boo. At first we thought it could be jealously over his new brother, or maybe something at his school.
Then i found this website and everything clicked, how scary it must be for a child to have these horrible thoughts and not be able to understand or stop them. What are the people at merck thinking??
Can any one tell me when the symptoms stop. He's been off for a week and we see some improvements. But he still has these fits with almost an OCD tendency to them (mainly when he's overtired), stomach pains, lack of appetite.

I have been reading all of the other posts and as parents all of feel guilty because we allowed our children to be placed on a medication that probably caused many problems that has led to each of our children being diagnosed and labeled with other issues (my son, autism spectrum disorder). Now that all of know whats going on. Now it's time to make these pharmacuetical companies pay for what they put our children through as well as what they put us parents through. Granted it may have been only a week or so that we've all taken our children off of the meds, but I have seen such a difference in my son, now I do not believe he is autistic. So he now is labeled as such and this can be detrimental to his future, thanks to Singular. Those who agree, email me at gcruz30@hotmail.com place in subject: Singular