Welcome to HealthcareMagic forum.
From what I understand, you are suffering with right lower abdomen pain. Yes, appendicitis
does present with right lower abdomen pain. But if the pain is not very severe and you do not have fever / nausea
, it is less likely to be appendicitis. Besides the CAT scan was also normal ruling out any chances of appendicitis.
This pain what you have could be related to some minor intestinal infection; renal stones
or minor muscle sprain
Adequate rest and analgesics like motrin would be helpful in these conditions to relieve your pain. In addition, drinking plenty of fluids is recommended.
I understand you are concerned. But all the test and your symptoms are against possible appendicitis. This is more likely a sinister problem which should settle down in a few days.