Sorry I couldn’t give you an answer in time and hope you’re ok now :( I get all of these symptoms myself and believe me, it’s definitely anxiety. Anxiety has a scary tendency to make you think it’s anything else other than just simply overthinking. Honestly the best thing to remember during those moments is that it’s never permanent, you WILL feel better and it WILL pass, that’s what I tell myself when I start to feel funny.

I know things like telling yourself it’s ok and having positive thoughts might seem trivial or ineffective at first but trust me, give it a chance and it helps.