Frequent nose bleeds symptoms and conditions

My 8 1/2 year old had been off and on (mostly on)Singulair since he was 3 years old. It has always extremely effectively controlled his asthma. However, I am concerned about some symptoms that I believe may very well be side effects from this med.
He has trouble sleeping (esp. going to sleep), he struggles with daytime drowsiness (even after 10 hours sleep), he has rare occurances of bedwetting, frequent nose bleeds, and has dropped from the 75th percentile in hieght at age 3 to less than 10th percentile now. He also experiences frequent and severe mouth sores (apthous ulcers) that do not clear up easily.

I have been taking Prilosec for a couple years and then my insurance company quit paying for it now I have been on the OTC and began having frequent nose bleeds and profuse sweating mostly in my right armpit...need to talk to my Doctor.If I dont take it I get acid reflux real bad...

I've started experiencing frequent nose bleeds after
taking Prilosec 3-4 times a week for the last 6 months.

After doing a web search for "frequent nose bleeds",
there are a lot of hits for "mold", but I am positive that
that is not the case in my situation.

If anyone else has been experiencing frequent nose
bleeds after using Prilosec, I would appreciate hearing from
them.