Ther�'s something wrong with my right eye!?

My right feels like it has something in there. ive check and checked and theres nothing inside.Also when I bend down i feel this pressure in my right eye which causes it to hurts. THen if i press down on my eye it hurts . I noticed i had this little spot on my eyeball almost like a bruise. This gunk is coming out of my eye (goey eye boogers) i keep taking them off ,but Im still getting them.I wear contacts,so idecided to throw away that pair and the case. Any suggestions what it is and how i can do something about it?