https://
medhelp.org/posts/HIV-Prevention/Hong-Kong-Escort-Unsure-About-Protection/show/3043813
Everything you have described here proves that you are going through extreme anxiety.
It is not normal to observe your body so closely, you seem to be checking on your body every hour for what you have read online.
Stop fiddling with your penis to determine if it is tender, you will only make it sore by squeezing and pulling it. It is not an ARS symptom. You are sweating because you are scared to death. Diarrhoea, sore neck and pain in groin is psychosomatic. I know it because I have seen atleast 500 people with no risk, complaining about the exact issue. These are classic anxiety symptoms.
We have established in your earlier thread that you do not possess a risk from your incident and there is no element of doubt that you are very anxious, it is only reinstated from the point where you are assuming that your sexual partners had HIV, this one is the keystone of your obsession and thereafter imagining symptoms, excessive internet searching on google about HIV, all these points towards only one thing - Extreme Anxiety.
You are confusing two different emotions here, your problem seems to be guilt of cheating and fear of getting confronted, you are grieving passively by beating your self up with this HIV scare. I told you the last time, you need to address your issue objectively. This is not an anxiety support forum, you need to see a counselor in person for a proper rearrangement of thought process. This forum is specific to HIV prevention and you don't seem to have a relevant concern.
Please seek help, it is available. All you have to do is reach out for it. Good luck.