Well...I guess a bit of background is probably in order..so I'll detail it as much as I can without writing a novel

Something went severely wrong when she entered high school, 5 years ago. Although she was always overweight (doctors kept checking her for diabetes, never for thyroid issues), she did very well in school, had very, very good attendance, etc. Yes, I know her weight played a part in self-esteem, but nothing manifested in that regard until 3 weeks after she entered high school.

Within that 3 weeks, I saw her do a complete 360. She began cutting herself (only did this once), if she wasn't out somewhere, she was sleeping, she started cutting school, and using marijuana. Needless to say, it just spiraled down from there. Although, at one point in Jr. year, I believe she had a period of remission where she actually made the Honor Roll one semester. Eventually, due to truancy and failure, she dropped out. I had to sign her out and I did only because they threatened to jail me for her refusal to go to school.

She dropped out after the first semester of Sr. year.

She enrolled in Job Corp...only lasted about 2 months, went awol, and when she returned, they would work with the awol, but she tested positive for weed (she had tested positive from the get go, but was in their drug program to get clean). Although the two tests showed quite a significant level change, she still tested positive and they terminated her.

The vomiting really started in high school. I look back and really can't find a pattern perse, but it did increase in frequency as time went on...hence the truancy issues. I got to the point where I refused to write the excuse note because she wasn't well enough to go to school, but that did not hinder her social life in anyway.

I can't quite pinpoint it to stress, becauseshe doesn't really talk to me if she is stressed, but I can see signs of mania when it comes on. I had to put her out of my house about a month ago because she was stealing and severely disrupting the household (I have another daughter who is 17 and in school, plus I am the breadwinner and have to work everyday). She would come and go at all hours of the night, up and down if she was here, on the phone fighting with someone...it was just too much and the stealing (for the ?th time) just put me in a spot where I had no choice. I could not live with the constant feeling of being violated within my own home. Plus, she was stealing from her sister as well.

Last Fall, she attempted suicide, as I said. She did not cooperate, but through blood tests, they found hypothyroidism and gave her medicine for that, which she only took intermittently for a few months, then quit also. She would not cooperate so they did not diagnose bipolar. By February when I was able to get her on state insurance (she was still 18), I got a referral from a family physician for a psychiatrist. He diagnosed her bipolar and gave her Abilify.

She took the Abilify (only if I gave it to her everyday) for about 2 weeks, couldn't stand the side effect of sleepiness, and just stopped. Hasn't seen anyone or taken anything since...not even the thyroid medication.

Her untreated bipolar is getting worse, I believe. She rapid cycles, has zero tolerance for stress, cannot do a multi-step task (even one that involves only 2 steps) and basically drifts. I have seen her go from one mood to the other within minutes sometimes. The worst comes when she needs something for an impulsive desire and won't get the cooperation, kind of like a spoiled child, but the desire is usually one that is pretty dangerous to herself or risky in general.

The lying is so intense that if I ask her the color of the sky, I have to check myself to make sure. It's horrible. When I ask her things...she gets irritated and even belligerent.

No meds in general is a bad thing...no meds AND no therapy in any form is worse.

You have helped me in answering the physical part of it, and I believe it is correct. Because her stress level is 0, I imagine that with no outlet, it takes on the physical form of vomiting, upset stomach, etc.