I presume your first test in the clinic where you saw the blood was another waste of your time and is 100% OCD driven. As this forum has told you numerous times before, this second test due to seeing blood is 100% waste of your time too. Your OCD is making you test for something you don't have, then you think you have to test again for the same disease that you think you got during the test! My advice to you is to get therapy for your OCD every time you think you need a test because you DON'T actually need the test and the test you take (thinking it will relieve the fear) just makes you imagine you got infected again and the fear remains.
Previous advice was > "I suggest you seek therapy instead of living like this. This forum can't provide any OCD therapy which is your ONLY problem."
"My OCD is on fear of HIV and nothing else. It has caused so much damage to my personal life that I really can’t be more honest than that. "