Had a hysterectomy 2 years ago at age 43 but left ovaries in. Recently tested that ovaries are no longer producing estrogen. OBGYN prescribed estrogen patch .01. Ok for several months, then started getting dizzy, off balance, chest pains, & shortness of breath. Some days ok, but most days, really out of it and can't function. Regular doc sez its because HRT otherwise everything else ok. OBGYN increased patch to .1, then premarin .45 and then .625. Now trying compound pharmacy to create natural estrogen pills at .625 level. As dosage increased, so did the symptoms. Often take Advil to relieve symptoms. Question: since these are symptoms, should I be concerned that it could be something else? Confused and searching for answers. Thanks.