Hey first of all I'm 19 years old, 6'2 183 lbs so I'm not overweight. Anyway abou 3 days ago i noticed my anus feeling awkward. I didnt think much of it until today. Its like theres a bubble of skin a little smaller than a marble on the inside of my rectum. Its not hard at all and its close enough on the outside that I can touch it. Its not sore and dosent cause any itching or anything like that. Anyone have any idea what this is? Is it something I should be worried about?
Thanks for you guys help in advance and I'm sorry if i grossed anyone out.

The best advice that I can give is to go to a gastroenterologist or, at least, to your family doctor. Do you have family members who could help you do that? I know it's awkward, but "if in doubt, check it out" is always the best thing to do. I was diagnosed with rectal cancer at a young age. THAT DOES NOT MEAN YOU WILL BE, but, as you go through life, it is always a good idea to see a doctor, when something feels "off." If it is hemmorhoids(sp?), then, you would want to be treated for that anyway. Take Care.

It may be a cyst of some sort. It may be an anal skin tag. See a general surgeon for an office visit. He will look into your rectum with a very short scope and will be able to tell you exactly what it is. Don't be embarrassed, they see people for these kinds of issues dozens of times a month.