CAN A RETURN OF CANCER AFFECT TSH LEVEL YEARS AFTER THYROID WAS REMOVED

I had thyroid cancer in 2001 so had entire tyroid taken out. In recent months have extreme tiredness like it was prior to my surgery and before medication. The Dr. recommended I have a test to check my TSH Levels again.  It is 14.00.  Wondering how it could suddenly spike so high after years of being fine. I have been taking the same medication. There is no thyroid so having cancer return to my thyroid directly would be difficult, but wandering if having cancer return to another part of my body could affect my TSH Level.  Any input is greatly appreciated?

Thank you...
Mitch S