Weight Loss, worried, Metformin may be

Friends,

I have been reading here. Now its time to write.

I have been diabetic I guess from almost 3 to 4 years.

I have been taking Metformin for a while now.

June 2008, I started feeling pants are loose. So came back from visit to India, checked up weight it was 173 lbs.

Got worried so talked to doc. Doc made me take colonoscopy. I did it pass fine no problems.

Then my obsession with weight began.

08/2008 173 lbs

03/2009 169.5 lbs (H1C = 10.5)
(did walking regular 2x1000mg metformin)

06/2009 164.9 lbs (H1C = 6.5)
(did decent walking, regular 2X1000 mg Metformin)

10/02/2009 164.3 lbs (H1C = 6.0)
(did decent walking, regurlar 2X1000 mg Metformin)

12/28/2009 161.5 (diff scale, H1C unknown)
(did low walking, almost regular 2x1000mg Metformin)

I am very worried about my weight.

Not sure if Metformin is causing it to come down or not ?

I do have the regular Metformin symptomps. Bad stomach, diahoreal symptomps etc.,

Does Metformin cause sudden weight loss ?

Or gradual weight loss ?

Is this worry about weight mental or should I be worried ?

After weight loss my H1C has reduced, Liver numbers are a lot better. (I had fatty liver)

Recently my Albumin number is 5.2. Doc did not seem concerned.

To the best I remember 182 lbs was my best weight (3 years ago I guess).

Any help is appreciated.

-S