You said it yourself, your hormones are definitely out of whack! Depo did very similar things to me, and while things have improved since getting off of it, I'm still not 100% better (and it has been maybe 3 years!). Absolutely go to a doctor and do NOT let them convince you nothing is wrong or that it's all in your head. Thyroid problems absolutely can happen when you're only 24! Best of luck!