I'm 17 years old and I was diagnosed with Hypothyroid and I'm underweight. My tsh level was 8.09. Ive been taking levothyroxine 25mcg for 13 days now. I go back to the doctors in March to do another blood test for the dosage and etc. Before I was diagnosed I weighed 87 pounds. Now i weigh 91.4 pounds witch is big for me cause I haven't weighed 90 for a long time, I now weigh in the 90s after taking my medication. I also don't feel so tired and lazy during the day anymore really. I was wondering if the levothyroxine is working and helping me gain weight and feel better.. and I was also wondering if being hypo and underweight is common? I look on line and ask yahoo answers and they tell me that it's impossible and they messed up.
I should weigh around 100 to maybe 105 pounds. I'm very petite and small framed, I'm 5ft. All I'm worried and focused on is getting healthy, feeling great and get my weight back. Should I gain weight with this medication?