Skin, tongue and hypothyroidism issues.

I was diagnoised by geographic tongue in July 2019. Vitamin B12 was less so took medicine for that but geographic tongue did not go away. I was facing burning while urination issue as well which was diagnosed as chronic prostatitis. During this time I tool antibiotics multiple times. I am facing skin itching issue as well which was duagnoised as chronic urticaria. I do not get any hives on skin. Sking just turns red and then becomes normal after sometime. I was told to take Levosiz 5mg for that. Itching goes away for 2 to 3 days and then come again and I have to take medicine again. I was told to get my Thyroid profile checked. T3 and T4 were normal but TSH was 22.46. HBA1c was 6.2. ESR 7, TLC 5.21, RBC 5.30. I am taking thyroxine 50mg for the past 2 weeks. Please suggest what should be done and to which doctor should I consult. My age is 36 and weight is 93kgs.