Let’s say that my arms and shoulders have joints that are making them make "crack" sounds sometimes. If I bend my arms in a particular position or bend my muscles, and I hear the joints sound (not the crack sound), will it slow down the healing rate?

For the connective tissues and joints that connect from your spine to the middle of the back of your head, if you keep on touching them, does it also make them less able to recover or can they recover with "touching" as long as there is no severe injury again?
I have no pain at all. My body is still able to perform alot of essential tasks.

Im looking for a nice site with music and pics to help me relax. I have lots of fatigue in my shoulders and neck. A friend told me about reiki but I need more information please.What are your experiences? Pros, cons, tips,hints. Thank you in advance
What is the chakra system?