Hi Convall, I am so sorry to say this and I do not mean to hurt your feelings, but I do not quite understand what you are asking. If you are asking if it is ok to isolate to be by yourself, I would for the most part say no. But it also depends on how often you feel like that and how long you isolate.
I isolate many times because I do not want the company of others. Cause I want to spend time by myself, working on my projects or reading. I find nothing wrong with that!
I guess it can be a problem if isolation is your way of coping with life period! If that is the case maybe you can seek professional help!