Symptoms, am I going crazy I feel so worried

I haven’t posted in a while to see if my symptoms would get better but I’m not sure if they have.. in June I took two plan bs and it’s been a full month since the accident and I’ve tested on the 2nd week, 3rd week and all negative. I went o the Er July 21st ( 23 days since the Oopsie) where they did a quantitive hcg urine test and it was negative which helped my nerves. on July 28th I tested for the full month and it was negative. I haven’t had any faint lines at all but I’m experiencing very very bad symptoms. My nausea has gotten to the point where it does feel like it’s coming up and about to come out like a burning feeling in my throat. I wake up nauseous and I’m peeing every like two hours which is not normal for me.. I’m bloated like crazy and constipated and when I do have the chance to eat I EAT. Is there something else wrong with me or could this be the hook affect? I’ve been reading things online and how the hook affect is real but I’m not really sure.. I’m really sick of feeling like this for what has felt like an eternity..am I pregnant or am I just having something else wrong with me. Please help:( I can barely sleep anymore and I’m easily irritated.