According to their website, the most common side effects include headache,
infection, abdominal pain, back pain, accidental injury,
and vaginitis (
yeast infection). So my guess is... there's your culprit...if this all started at the same time you started the Premarin and nothing else would fit. I would call your doctor and see if there is another med your could get on.
I'm not sure if it would help you or not..but I'm on Vivelle-Dot.