Re: Is this depression?
Many of the symptoms of depression are present. Generally, an official diagnosis of depression would require several symptoms, many of which you appear to have, over a period of time, like 6 months. If you are at the university, you probably have access to a counselor and might consider a visit. Although there may be some personality issues at play, they would generally be consistent over time and you would have become quite familiar with them by now. Do some internet searching on depression and see what you can learn about it.