I agree with Christine. You should have had a blood test about 2 weeks after starting Levothyroxine. Many Patients need to have the dose increased. Some take 200mcgs per day .
I would ring your Dr and ask for a Blood test to check the level. Dont let him/ her fob you off.
I keep Kris's T4 level at the upper end of normal and he is very warm and toasty after being cold for months.
Glad everything else is going well for you.
Tammy

Caregiver/advocate to Husband Kris age 59@ diagnosis
DX Dec '10 SCC BOT T4aN2bM0 HPV+ve.Cisplatin x3 35 IMRT.
PET 6/11 clear.
R) level 2-4 neck dissection 8/1/11 to remove residual node - necrotic with NED
Feb '12 Ca back.. 3/8/12 total glossectomy/laryngectomy/bilat neck dissection/partial pharyngectomy etc. clear margins. All nodes negative for disease. PEG in.
March 2017 - 5 years disease free. Woohoo!