Is this anxiety? 

I've been experiencing racing heart, heart palpitations, shortness of breath, dizziness, and stomach pain. I don't believe I'm particularly worried or stressed about anything other than my symptoms and whether there is something wrong with me. I'm going to the doctor tomorrow morning but I have to get through the night and I don't know if I can. 

If anyone is free to dm me or just tell me it's going to be alright I really appreciate it. I don't know how much longer I can do this.