I did a quick search on bipolar and irritability, and I came up with this article from a blog:

http://www.psychologytoday.com/blog/...underestimated

The first two people described also describe me quite well...the first one especially...I'm like that to a T! Here's what it says, and I have bolded what I see as most crucial and like me.

At age 23, Keith has been depressed on and off for the last four years. He also has no clue as to why. He had a happy childhood with very supportive parents. He did well in college and he's now in his first year of employment as a high school science teacher. Keith has also been in a love relationship for the last eight months and his friendships are similarly quite good. While there are intermittent times when Keith feels just fine he repeatedly finds that for no apparent reason he becomes really unhappy. He doesn't just feel sad, blue or down. It's more like he feels miserable with a sharp edge of discontent. In the midst of his negativity everything grates on him. During these episodes which can last up to a couple of weeks he can't seem to get comfortable with himself or with others. He just wants to snap at the people he cares for, all the while knowing they don't deserve his negativity. So rather than approaching social situations like an agitated porcupine, he prefers to withdraw to his bedroom hoping for some respite. Unfortunately, it doesn't come. With each episode he feels more and more prickly.

Erika is 19 and finishing up her first year of college. She did well during her first semester, attaining Dean's list while also establishing some excellent new friendships. Spring semester also got off to a good start - no major hassles. But beginning early April, Erika found herself frequently feeling like she was tied in knots. She was keeping up with school work and generally remaining on top of things. Despite her relatively low degree of external stress she was having difficulty getting more than a few hours sleep at night. She also found her mind was darting about with unusual speed. When she was in this mildly agitated state Erika reacted to her friends more like they were poison than a source of healthy support. She knew something was wrong but had no clue as to what it might be. She did know that her generally positive nature was transforming into her version of Erica the Witch.

...2 1/2 more weeks til my appointment...