Blood LEvels...can you read normal but need supplementation

Ive been up and down for the last month, after a year of having been 'sorted' with meds. Started feeling tired adnd didnt recognise the symptoms; didnt catch it until i was nearly dropping. They put me meds up by 25 and i felt good and relieved for 2 weeks. Then i started to dip again and i 'upped' my own meds by another 25. Another week and i startedd to 'dip' again. went to see the dr (several times!) Was eventually advised that if i wanted to do so it wasmy own choice and theyve booked me in for a health check in 10 days time. So if i start tonight that will be 175. Any feedback/advice/ very gratefully recieved. I dont want to over medicate myself but am teling myself if its wrong Ill just bring it down again. And wonder what else is wrong. )-: My bloods are normal as is my free T3 and iron. Unfortunatly didnt get the ranges as my brain isnt working brilliantly lately..........