Help with New Symptoms

Please read this if you can. I really need some help with something, I'm at a loss and have no idea what's happening to me and I want to know if anyone has experienced anything similar and maybe could give me some advice. So, pretty much as soon as 2023 started I've had an array of new symptoms that I've never experienced before. The one that's puzzling me the most is my appetite. I'll feel like I'm starving, but I can only get less than half of my plate down before I suddenly just don't want it anymore. Even if I still feel hungry or it's a food I normally love. Then yesterday and even today I've felt nauseous. Yesterday was the worst day and I ended up having to sleep it off. Any time I get excited or elevated my chest suddenly tightens like I'm anxious and my nausea comes back. My stomach has been bubbling too, and not because I'm hungry. I've also been having a lot of issues with time and dissociation/derealization. It feels like it's only been 3 days since New Year's Eve but it's already the 9th, which means I've somehow lost six whole days. I've had an almost constant migraine or a pressure inside my head. Sometimes my body feels numb and tingly. It would be easier to just say it's depression and move on, but I know it's not. I've felt some DEEP depression before and it has never done this to me. I haven't gone to my doctor because I know he'll just say it's depression. I can't even take antidepressants. I don't like the ER nearby either because I had to go there in early October and they didn't seem very interested in me at all. If I spoke more than a couple of words they stopped listening and spoke over me. I just don't know what to do and I don't know what's happening to me. If anyone has experienced the same thing or knows what might be going on it would be a HUGE help. I love this community 💜