I certainly am not a Dr. and I as I'm not there with you, I don't want you to take any chances!
SFG, you sound as if you need to try and get a grip on this situation and perhaps try some breathing right now-you're probably getting so worked up here that it's hard to concentrate, but a little breathing in through your nose to the count of 5, slowly. Then holding it in for the count of five and then slowly exhaling to the count of 5...see if this helps a little. Are you familiar with this technique, or something similar? Only do it once or twice in an hour, never more than 3 times.
If this isn't working then please do not hesitate!-call 911!!
Please let me know how you are doing!? Hugs, Teri