Constantly feeling sick, no idea how to handle this

Hey, so, this is my first post here so I hope this isn't in the wrong category or something (I'm sorry if it is!). I've been having a really bad night and I have no idea what to do. For a little bit of background, I'm in remission from severe depression and anxiety that held onto me for a couple of years back when I was in high school. I'd like to think it's mostly cleared up, with the odd day or week as an exception, due to councelling and time spent away from home. I've never been on medication before, but I'm starting to wonder if maybe that was a mistake.

 

On Saturday as I was studying I felt this awful tug in my stomach like I was going to be sick out of nowhere. I ran into the washroom and stayed there for two and a half hours, just shaking and deep breathing (I have emetophobia, fear of getting sick to my stomach, which DOES NOT help). It cleared up, I went to sleep, and the next three days I stayed away from food because I still felt it lingering. The next day, I ate a bit more, and surprise! I felt hugely sick again and had to go home from school early. The last day of school, Friday, I was feeling perfectly fine so I had two alcoholic drinks with friends (which is very far from my limit) and proceeded to have a three hour long panic attack in the washroom. Stayed away from food Saturday, and Sunday, today, I feel horrible again. I can't tell if this is my period, which just started and is never this bad, or if I'm internalizing all my stress from finals (I have one tomorrow and I can't study like this) or if there's something else happening but I have no idea what to do. I tried to drag myself to the clinic but they're all closed until tomorrow at 12:30. I feel like my throat is closing up, I have bruises on my sholderblades from how shaky I was, I'm tired, and of course nauseous.... I don't want to live on pepto bismo and tums for the rest of my life. I haven't actually gotten sick, mostly because my emetophobia has literally stopped me from being able to, but at this point a stomach bug would have passed by. Could this be from stress? I'm going around in circles. Thank you for hearing me out, if you did, I really appreciate it. 

Ur having a panic attack its normal to feel ur throat closing also noy eating comes along with it and pain in shoulders neck and upset stomach all relatied call a doctor asap let them know try taking deep breaths in through the nose out through your mouth slowly prayers sent your way

Thank you so much for your thoughts, I didn't recognize this as a panic attack because the only thing I've been worried about are the symptoms themselves, but if thats true then I've been having them a lot more than I thought I was. I have an appointment booked for a drop in clinic tomorrow, hopefully they can help me a bit. Hope all is well on your end

good idea to go to clinic.professional opinion  would be good.Perhaps you can look up ulcer as I see similar symptoms to what you described. Because of your fears it needs to be addressed soon.you are taking positive steps toward resolve.also there is a symptom checker on this site .

Emis Moderator comment: the symptom checker mentioned is linked below.

https://patient.info/symptom-checker