Anxiety

Just need reassurance that I'm not the only crazy one out here. TTC for little over a year I've already 2 children but for past 2 months been struggling with anxiety to the point I just want to cry. Every ache and pain gets me anxious. Period is due today and for 2 days I've been feeling sick dizzy and hot and just want to sleep. Negative tests today at 14dpo and with them being negative it's making my anxiety even more crazy as I don't know why I feel so crap. I don't know what advice I'm after just hate feeling like I'm th3 only one feeling like this😓