anavar or other AAS will lower binding protein for T3 and T4, making their 1/2 life really short, so that will affect your metabolism somewhat. Normal people using AAS dont become hypo or hyper though.
clen and other beta agonist will probably lower TSH, someone correct me wrong. but i do know it will affect thyroid.
so you have two compounds that will probably affect your thyroid that is already not functioning well. Your doctor will not be happy about that.