I'm sorry that you're struggling.
Never any fun.
Are you working with an epileptologist, neurologist, or general practitioner? I'd recommend contacting who you are working with and report these symptoms to him/her. Personally, I have an epileptologist & strongly recommend that you check out your options in the area. These doctors are very experienced in the 30+ different types of seizures, causes, and treatment.
Very best wishes to you ~ I hope that your doctor's are able to get through the ectopic heartbeat and chest pain.