Terrible weakness

Dear Dr. Jyoti,

I have one more problem since the past 6 years which none of the doctors have been able to diagnose....they take it very lightly....even my current gynec.....i feel terrible weakness in my abdomen (diaphram and below) very often...i feel so so weak that i am unable to speak or talk...my breaths become so slow and short.....feel like just lying down with legs towards the stomatch.....this has been the case since a very long time....i dnt know the reason and am not able to know the reason for it.....

Can you please suggest something....