Omeprazole and feelings

Having been on omeprazole on and off for 15 years I have finally come off it.
My Gerd symptoms were worse at the end of the working day, probably due to me being a dentist, not an ideal posture for a Gerd sufferer. I could control my symptoms with 10mg daily but still got occasional side effects. The main one was slight diziness/ visual disturbance esp with bright light.
Have been using DGL 20 mins before my evening meal and just take magnesium hydroxide based antacid at night if required. Feel it is better to let the bodies natural buffering sort out the acid-base balance.
It has taken 3 months of cold turkey and the odd bout of severe symptoms but seem to be coming out the other side and now have several days at a time with no symptoms at all.

I have been taking OMEPROZOLE for around 9 months for Barretts Asophegus reflux.
In general I was beginning to feel I was very ill with symptoms mainly: hot flushes, my face was burning for a few seconds, dizziness, stomach cramps top right mainly, feelings of diareah, and dry mouth.
Has anybody else experienced any of these symptoms... my GP is sending me for a scan on my Gall Bladder, but in my mind all these cramps are associated with Omeprozole... I cannot stop taking it or I get severe pain between my shoulder blades with reflux burning.
Maureen.