Mr. Gets hurt too much

I like to go on a chat site called Refuge Chat, and recently I've been having quite a bit of trouble, seeing as my enter key no longer makes the shortcut to send the message I just typed in. i have to hit the send button on the side. I'd be fine with this normally, but there is no such button on the side when I try to private message someone, so I can't do much...

I'm running a MacBook Pro, with Mountain Lion, and Java 7. The site is called Refuge Chat, and I can't seem to get any help. All the enter button does is bring me down a line

Like this, instead of sending the message. If I could have you diagnose the problem that would be nice. And also how to fix it.

I was wondering if it is possible, from my desktop, to partition my MacBook Pro's hardrive so that I can have a greater RAM output. Is there a software that can help me reassign some data? Or will I have to go out and buy this crazy expensive hardware?

I downloaded the new black ops for mac, and I also downloaded the gamepad so I could play it with my ps3 controller, but for some reason, even when I have it connected, the option to configure the controller using gamepad is greyed out... Could I have some help here?

I was messing around with my friends on a huge slip and slide. I was running towards it when I tripped and started to fall. I tried to roll out of it because i'd rather not face plant on the cement, but i was a little early on the roll and landed straight on the back of my right shoulder, putting all my weight and momentum on it. I heard a pop, and when I got up my lower arm was numb and I felt immediate pain originating from the joint and couldn't move my arm without serious pain and discomfort, but I didn't seek any help with it. After about ten to fifteen minutes, I could move it again and could again feel my arm. Its been 3 days since it happened and the pain persists but has slightly lessened, but I keep accidentally bumping it and laying on it, causing the same original feeling I felt when I injured it. I can do simple tasks with my arm so long as I don't use any shoulder muscles or my triceps. When I lift my arm horizontally away from my body I hear multiple pops and a grinding sound and sensation. I feel only a little bit of pain, but upon letting my arm down I feel only muscular pain in my triceps. I'm currently on prescription growth hormone and I'm afraid that this major joint is in danger of being permanently damaged because my body is currently in a state of a permanent growth spurt. I don't want to go to the doctor though because if there is even a slight pain in any of my joints, I'm not to take my growth hormone for a long time, thus affecting my future height.

Personally, I can't tell if its swollen or not, and I can't see any obvious deformations of shoulder, I am just concerned if it is something I should be worried about.

What is ailing my shoulder, and is it serious enough to go to the doctor about it?