spit it back out
You need to specify your gender. Are you a female and can't feel the semen enter your vagina, or are you a male and can't feel the semen travelling along your penis?
cos i feel i have done some off loading?
yes, they feel it all the way out even sleeping.
maybe your body hasn't matruel
It feels like snot.
If you are male then yes it is.
No it does not. Some you can feel and others not but it's not painful.
Possibly
If it's just a little bit, I doubt they feel it at all but if they are actually ejaculating then yes, they do feel it. They will also feel when it's about it happen.
Send it to a laboritory where it can be tested by experts. otherwise you cant be sure.
You cant tell you have low sperm count by looking. How do you know?
A clock
The only drug that may affect your semen is cocaine; sometimes the properties of cocaine can mix up with the properties of your semen, causing you to ejaculate little cocaine, and more semen. However, if you have a infection through drugs, in most cases, you still may not feel any difference in texture.