Hi, its my first time on here, I'm not sure whether I have a thyroid problem or not but would really love to know what is making me feel so rotten!! NHS tests came back normal so I had private ones done. The results were normal. The Thyroid Uk page states that if T4 and T3 are at the lower end of the scale then there could be a problem, I'm just wondering what is considered at the lower end of the scale? I am between the bottom and middle with both. My T4 is 14.97, the normal range is between 12-22 and my T3 is 4.02, normal is 3.1 - 6.8. I'd be so very grateful if someone could advise me on this. Thankyou, Michelle.