Scuba Diving Gear

Ten things from my list.
1. Get my Masters Degree
2. Settle down with someone.
3. Road trip across the U.S.
4. Volunteer with youth in Africa
5. Buy a house on the ocean
6. Join the Peace Corps
7. Write a book.
8. Go Sky diving
9. Snorkel the great barrier reef
10. Backpack through Europe

I went snorkeling earlier for the first time. I had a blast, but now I am feeling the side-effects. It feels as though my shoulders and neck muscles have all decided that they hate me. I'm not a very strong swimmer, so its very possible that I was swimming at an akward angle, and especially considering I was out swimming for about 3 hours holding my neck at very akward angles to check out all the sea life, so because of this I am very, very tense. It's so bad that even though I am completely exhausted, I can't get any sleep. I know a good massage would do me wonders, but I'm currently backpacking in a youth hostel solo - so there's no one for me to ask for help that lives within 1500 kilometers.

Anyone have any suggestions for what I could do, or for ways of coping? I have a white-water rapids trip to go to in 7 hours, and I refuse to miss that. Even if I can barely paddle because of the pain - I'm going. Thanks in advance!