Our members have advised you that you did not have a risk but if you would like to test for peace of mind only, that is your choice. There is nothing to add to this advice they have given so we are closing this discussion.
*** thread closed ***
No the condom didn't break because if that happened it would be a large rip down the seam and it would hang in tatters so both of you would know it.
Your symptoms are experienced by millions of negative people like you who have anxiety - so your friends are correct. For example you didn't get a bad taste in your mouth and you didn't feel fatigue because it was in your imagination. A test would be a waste of time, so talk it over with your doctor instead so you can relax and accept that nothing happened.
As an adult, the only risks for HIV are:
1) having unprotected, penetrative vaginal or anal sex, or
2) sharing IV drug needles with other IV drug users.
If the condom broke, you would have known as it would have been very difficult to remove from your penis.
Your stomach is likely growling because you don't eat properly, and the symptoms you detail sound like anxiety to me. HIV rashes wouldn't just be on your thigh anyway.
You can test for peace of mind if you like, but your result WILL be negative since you had no legitimate risk for HIV.