I had my period 10 days ago and now I've been spotting but I blead again but it was very watery and color maroon, should I be worried?

See Ob/gyn. Are you taking birth control pills? If you recently started taking them, spotting is not unusual & will eventually go away once your body is used to them (can take up to 1year depending on the pill). However, if you are not on birth control, it is best to see your ob/gyn to find the cause of the spotting and what treatment is best. Treatment usually is some form of birth control pill.
Could be spotting. Sometimes near the end of the menses there are some watery elements as it tries to clean itself up. I don't think you should be worried unless you have not experienced this before. Just try a pad and keep on going, but take it slowly and rest.