I've been on glucophage since the beginning (10 years) , with the exception of a short and nearly fatal foray into Avandia use. I've had all those symptoms for ten years. I also have passed out several times from low blood sugar, something the doctors say doesn't happen on this medication. Ha, ha. Tell that to the Saturday morning crowd at Denny's.
I have been told I am an exception and, normally, the symptoms are supposed to fade after a few months. Meteformin has been the best medicine as far as control, but I'm queasy or dizzy or just plain ill a lot of the time.
Your husband seems to be experiencing hypoglycemia and his doctor should be notified immediately. These are the signs:
* shakiness
* dizziness or lightheadedness
* sweating
* nervousness or irritability
* sudden changes in behavior or mood
* headache
* numbness or tingling around the mouth
* weakness
* pale skin
* hunger
* clumsy or jerky movements
Also, If he experiences any of the following symptoms, call his doctor immediately: extreme tiredness, weakness, or discomfort; upset stomach; vomiting; stomach pain; decreased appetite; deep and rapid breathing or shortness of breath; dizziness; light-headedness; fast or slow heartbeat; flushing of the skin; muscle pain; or feeling cold.
It's hard to say since you didn't mention his glucose levels nor his Metformin (glucophage) dosage. A lower dosage or a change in medication may be in order. Please call his doctor asap.