What's wrong with me, please help!

Will someone please help me out?! 😟😭😭 my boobs have been sore for alnost 3 months now! Idk what to do. I don't feel a lump or knot, but they are so heavy and full feeling and painful idk what to do. I have an appointment but since I'll be a new patient, there's nothing available until March 30th.. I'm not pregnant and please don't tell me this is normal. I usually only experience breast tenderness on my period and then it goes away but I've had this going on since my cycle came on in January. Also experiencing: weight gain/bloat, fatigue, hair loss, extremely dry skin, headaches, abdominal pain and discomfort, gas, and nausea!! I'll take any advice you've got for me or home remedies. I pretty much have to wear a sports bra all the time because my boobs hurt so bad. It's more painful around the nipple. Aleve/tylenol helps but only for a little bit. Coke helps with nausea/headaches but I feel like it intensifies the breast pain.. I'm lost. Idk what's going on with me. I don't take any daily meds other than vitamins. I'm 27 and healthy as far as I know!