EnragedOryx

I'm not on any kind of medication. One of my friends had something similar, but that was a fully exposed shot to the forehead unlike mine which were all under a hoodie sleeve, some even double layered. 

Also could someone explain what you mean by 'hot gun'? As I said I'm quite new to this so I'm not familiar with some of these terms.

A 'hot' gun is one that is shooting beyond the site power limit. For instance most sites have a limit of 350 fps using .20 BB's if the gun can shoot full auto. A gun shooting more than this is 'hot' Typically snipers have a limit of 500 fps but are restricted by having a minimum engagement distance (MED) which is commonly 30 meters. 

Went to the same site again yesterday. There were only 20 or so people this time around (somewhere around half of the amount from last time). I went out in the week and bought some undershirts as well as some t-shirts, both long sleeve.

I'm still unsure of what made the difference, but I managed to walk away yesterday with minimal marks, the worst being on my hand which only left a small red patch (I was wearing gloves). Either that little bit of extra clothing went a long way or no-one was running a hot gun this time around.

Once again thanks to anyone who was able to help me as now I can do something I enjoy with zero worries 😄. 

(Edit: Just spaced out the reply into paragraphs.)