And can't relieve the pain from rlq spot. Is it appendicitis?

Had it for how long? Appendicitis usually presents with symptoms for 12-24 hours before perforation- that's when people get really sick. So if you've had rlq pain for longer, consider musculoskeletal causes, regional ileitis, ovarian causes (if female), groin hernia, constipation- well, that's a few. See your doctor for a proper evaluation.
Unknown. Depends on how long the pain has been present, as appendicitis will get worse over 24 to 48 hours. Appendicitis is often associated with loss of appetite, and sometimes vomiting and fevers. Without knowing more of your history it is not possible to tell you. You need to see a medical professional.