I have been on Levoxyl for years. I was diagnosed with Hashimoto's when I was 13 years old. I'm 35 now. I have been on every medication made and this is the only one that didn't make me want to sleep all the time. I have suffered from Depression my whole life, but that started before the thyroid too. My mom was one of the first people to be treated with Iodine when she was a kid and it worked for years then her thyroid acted up again in her 50's. When she was younger it was Hyper and now it went Hypo. She takes Levoxyl now too and it's been great. I think part of my problem has always been a lack of exercise. A lot of the symptoms everyone has mentioned went away for me when I started hiking and walking regularly. After being inactive for so long due to the depression and exhaustion because of the poor diagnosis of my thyroid medications for so long, my blood pressure was too low, my circulation was poor and my depression got worse . Now with a combination of meds for my depression and my Levoxyl, I don't feel like there is a giant weight on me when I wake up in the morning. So many of the meds described have similar side affects I've stopped judging by side affects and rather my energy level, my weight, goiter size and sleep pattern.
Just my experience. Good luck to everyone