Female discomfort right side next to belly button. No pain. It comes and it goes?

Likely okay. Not quite sure what "female discomfort" means, so the answer may miss the mark. If you mean pelvic pain on the right side, it could be from ovaries as part of normal menses, or it could be from more serious problems. Many different sources exist in that location. Pain that comes and stays, or becomes severe, or has associated symptoms such as fever, nausea, and so on should be evaluated.