Re: hairloss with thyroid
If low thyroid is the cause of your hair loss, it will stop and new hair will begin to fill in when your dose has been optimized for your needs. Clearly, your dose was not optimal or your TSH would have been no higher than about 1.0. You were right to increase your dose [I hope you asked your doctor first, though!], but it still may not be enough for the long term. And 6 weeks of the increased dose is very likely not long enough for changes to show. Hair grows slowly. First you have to stop the shedding; then regrowth will occur.
Keep after your doctor to increase your dose until your TSH is around 1. If hair loss doesn't stop then, you should investigate other causes. Iron anemia and low ferritin are prime causes other than thyroid disease.