I am in a similar situation to you. I had severe depressions in my 20's and agitation and irritability along with impulsive behaviour. I also had periods of bliss and elation etc. My Doc had suggested I might be bipolar after I came in paranoid, depressed and in tears that there was discoloration in various parts of my body. Obviously having psychotic symptoms as well then a few weeks later I was perfectly fine.

I didn't believe him until I saw the pdoc who made an initial Bipolar diagnosis. The words were ''his condition falls on the spectrum of bipolar disorder because the mood changes are significant and affect his functioning.''

This was later changed to Borderline Personality Disorder after more investigation. From reading about the conditions it seems some Borderlines may fall on some cyclothymic temperamental subtype of bipolar which may respond better to psycotherapy than medication. There are also many alternative type therapies you can try also which have helped me.

I am unsure which I am still because I have periods of elated bliss which are a defence against disruptions in my early attachments which dont appear to be Borderline. As said above you are best discussing it with your pdoc. The only thing to be wary of is that if you do think you are getting better and have another episode of elation or depression you may have to start all over again.