Suggest Remedy For Leg Pain

I have been on synthroid since my mid 20's (150 mcg/day). I am now 63 and recently, last few months, have experienced many of the original symptoms - fatigue, hair loss, dry skin, severe muscle pain etc. An endocronologist diagnosed hashimotos (t-3 was low - TSH normal). For 5 weeks, I have been on 5 mg of Cytomel and now have had a red, hot itchy rash which has subsided but now my body is peeling! The muscle pain and fatigue is a bit better but the leg pain is worse at night, waking me often. Should Cytomel be taken twice a day? Are these symptoms normal on Cytomel?