taking levothyroxine for 15 dys now. 5 days ago started to feel less fatigued and lots more energy. but today not feeling well just like before and my bones and muscles ache so badly all over. is this to be expected at first. im on 50m levothyroxine per day, i go back next week for my blood test results fot t4 and cpk blood test results. plse can u help i feel so alone.