been on thyroxine for 3 1/2 years now so why am i in so much pain all the time? i have aches running along my shoulder/neck and down my arms, in my thighs and my feet constantly. i only have to hold something for 5 mins and the pain in my arms is horrible. the doctor tested my blood and said thyroid levels are still ok but im 44 and feel 100 and it is getting me down, has anyone got any advice? My eye are also really dry all the time, i wake in the night and it feels like my eye lids are stuck to my eyes!