I am 51, 5 years post-menopausal, with night sweats, high bp and ...

I am 51, 5 years post-menopausal, with night sweats, high bp and a last recorded cholesterol level of 5.8 I have been on lisinapril for a couple of years for the high bp with no apparent adverse side effects. I no longer have daytime hot flashes but the sweats continue in the evenings and early mornings. I have been taking simvastatin for some months now. My biceps seem to ache after the slightest effort. My optical prescription has changed. My night sweats are absolutely horrendous if I take my tablet - I retire at about 11.30pm then spend the night from 2am dozing in between throwing covers off and on and searching for a cool, dry bit of mattress and pillow - I feel as if I haven't been to bed at all and have an itchy sweat rash at the back of my head and neck. If I don't take it, I sleep until dawn (5.30am) then doze between sweats until I get up and take my lisinapril at 8am but the sweats are not nearly so frequent or severe and I can function during the day. I am tempted to blame my sleepless nights on simvastatin but am I being fair?