Is there a medical chart somewhere that will tell you the difference between mcg and mg. I was on .125mg and am now on 88mcg. I don't think that I've ever been on the same dose for any length of time since 1990 when I was diagnosed with Graves. What I'm looking for is a conversion chart. My mother is hypo and her med's change every appointment also. We live in a small town with no endo. Sucks. I feel like I'm back on the original roller coaster. Sweating, nervous, moody, hair thinning. I want to start somewhere, so I need to try and understand what the doctor's are giving me. I had an endo in New Orleans, but Katrina took care of that, (stress, yes I know) and I've been living at home in GA for the past 2 years. I did have RAI treatment in 1990. I'm 5'8 and weight 120 on a good day. I had a goiter when I got here 2 years ago and had lost about 20 pounds (weighed just over 100). Should I make a long trip to the endo?