My TSH is high but T4 is normal? PLEASE help.?

I have an appointment with an Endo. I just want to know if how I feel is normal....My TSH is high, but my T4 is normal, based on the last of the blood tests I had done. I am ALWAYS agitated, grumpy, irritable. Sometimes I get depressed. I feel uninterested in my husband (which is INSANE he's amazing and just a month or 2 ago I felt normal). I get panicky and I am so miserable. Is all of this related to my TSH? I'm usually a very level person, but lately I feel like a nutcase!!!!!!! Please tell me this is normal.