Congealing blood? That would be great.

Hello, I'm just making sure this is not a serious health issue. I'm 18 years old and still have a bit of acne on my face and shoulders. I have been popping the pimples and blood is coming out (which I suspect is normal). but when i got to wipe it off some of the blood is sticking together (congealing) and other parts are just normal. I don't know if this is a normal coincidence i have only recently discovered or a health problem. Besides getting over a Cold I have felt great. I am able to work 8-9 hours at work perfectly fine and play sports without feeling tired or weak. On a side note, I am a hypochondriac and always worry about my health so if you guys could help me out that would be great. Thanks.