Mental health

So I have been getting some anxiety lately like whenever I would go to uni I would feel really hot like I’m overheating kinda lol it sounds weird but I just start feeling really hot and sweaty. Idk why I’ve had anxiety and depression for a very long time now but this has just been happened recently. When Im walking and there’s a lot of people too it happens. Sometimes it just happens for no reason. This is really new to me and I don’t know how to deal with it. I then feel like my hearts just beating out my chest. I did think social anxiety but I’ve never had that before and even when I’m alone it sometimes happens out of no where. I don’t know if I’m really making sense but If anyone knows anything that can help it would really be appreciated 🥺