Milhar, I am sure u can test it on urself and how ur body reacts to the fasting.
there r ppl who can do it, monitoring their sugar level carefully through the day, and there r those whose bodies simply cannot take it.

So just try to fast, but pls be very careful.
If u see that ur body is up for it, then go ahead.
Plz remember also, when u r breaking the fast, do not eat too much at first, so that ur sugar won't go too high rapidly!!

And if u will see that ur body cannot do this, then plz don't fast.
U can have ur own way of fasting in this case. Make it in the way that is up to u...like smoking and other things.
God doesn't want u to harm and hurt urself- this is even more haram than not fasting if ur health is in a good condition.

Ramadan Kareem :o)

If you're looking for a problem, you're probably gonna find one.