having twins

I am 35yrs.. I am 9w and 2d with twins.. I trying to found out if it normal to have alot of back pain..I started have movement of bubbles about 5 days now.. and the more bubbles.. more pain I am experiencing in my back..this is my third pregnancy. I haven't been pregnant in 16 yrs so this is like starting over

[Dr. Kokil Mathur]

Hi!
I am sorry but I am not very sure what you mean by bubbles. I assume you mean gas. Pregnancy can cause increase in acidity, indigestion to some food items, gas, and constipation. Together they can cause back ache. Also, log in your food intake and see if there is a correlation between what you eat and increased gas formation. Try to reduce those items from diet which cause more discomfort. If the uterus is tilted backward slightly (not a cause of worry), then this can also cause backache. In some it can also be a sign of threatened abortion. However, it is very difficult to access the situation on net. Also no medication can be prescribed on net in your condition. Please consult your gynecologist immediately. Take care!