Thanks for the query to H.C.M. Forum.
Since I U D's strings feeling very well , including negative pregnancy
test , so first of all be sure that there is no pregnancy at all.
Now concern is about nausea
and hunger all time .
Due to overeating there develops nausea ( due to hyper acidity).
Take 1-2 tablets of antacid
one at a time for 5-7 days.
Try to avoid overeating and junk , fried food .
Also avoid coffee , tea ( in excess).
Tension is one and foremost cause of nausea.