I've just had another episode of this triggered by getting a nose bleed in the shower. I've currently got flu so I thought my nose was just feeling a bit full because of all the mucous, so I wiped my nose with my hands, looked at them and they were covered in blood. I knew immediately this wouldn't end well so I got out the shower and a few moment later, when I entered my room my vision started to go blurry and I stopped being able to hear anything clearly. I sat down on my chair and as usual I blacked out for a moment, with lots of weird images racing through my head. Two minutes later I wake up and feel very weak, my entire body is tingling and I can barely move.
My blood pressure is somewhat low, 105/55-ish last time I had it checked, but that alone never seems to trigger this kind of thing, so I don't know So far I've just been hoping that I will get more used to seeing blood and things and this 'reflex' will go away.
Other times it's happened were when I was in a hospital doing work experience on A&E and one of the doctors was performing a femoral stab on a lady with kidney and liver failure who had lots of fluid under her skin all over her body, after having a blood test (I felt fine after, it only came on a while later when I was walking down the stairs), and when I was doing a kidney dissection in Biology and accidentally cut into my own hand with the scalpel.
During the work experience at the hospital I did as I mentioned earlier on, after that happened (it was on the first day that i fainted) I made sure I drank lots and ate plenty of sugary things the other days I was there and nothing happened, even when I watched people getting stitched up or having normal blood tests done.
I had a full blood count and fasting blood sugars done and they all came back fine. So is it just that I have a bad tolerance for blood or could it be something else?
Also, am I likely to get over this the more blood I'm exposed to?
The applied tension thing sounds interesting. I just not sure how to go about de-sensitising myself because I don't mind videos or photographs of blood at all, it's just quite specific situations that make me faint unless it's me bleeding.