Guaifenex and upset stomach

My doctor prescribed me Guaifenex for a sinus infection along with trimethobenx for upset stomach along with advair ( a powder inhaler) never knew why she prescribed all of this medication just for a sinus infection. I stopped taken the advair an experienced shortness of breath, bad headaches, but one things for sure I only eat one meal a day. Oh by the way I can't sleep at night and extremely tired in the morning to start the cycle all over again the next day. It leave a very nasty taste in my mouth i'm constantly brushing my tongue it leave a coating on it. The drainage I can never cough up and my ears has been clogged since I started these meds. I take tylenol pm just to sleep. Something to think about before taking this medication. You get it for a sinus infection but end up with a headache.

hAd to call doctor and told him that I could not sleep since I started this medication for congestion. He told me to take only 1 pill in morning and eat with it so it would not upset stomach. So I started taking guaifenex at 6:00 am in the moring, have not had anymore problems.

I experienced halucinations, tightness or lack of feelings and hands, head aches, fatigue, drainage, mode swings, and upset stomach after using on pill and it happened each time i used it.

I have horriable side affects on this med.I started feeling so wierd on it,I have lightheadedness,very upset stomach, no energy at all,cramps very bad,gasyness all the time,mood swings...I don't like taking this med.,but I have to but I will tell my doctor I want it changed A.S.A.P...