Can confirm that disagreeable things aren't necessarily noticed before it's too late. That's how it happened to me that one time; absolutely no hint of having eaten anything bad, then i get a bit sick, and then i so sick that all i could do was shit, retch and cry. Fun times, i dearly hope you're not that sick right now. >.>
As for my sad, it's something that really shouldn't be sad'ing me. I'm treated very well by those near me; mom and dad are loving parents who only want to see me happy and doing well, brother is that doofus who's been with me my whole life and with whom i share a basically unbreakable bond, friends are swell people who respect my weirdness and occasionally very limited communication. Overall, i am incredibly lucky to have all of this going for me, and i recognize and appreciate that. Problem is, i feel like i don't deserve it, and have done nothing to do so. I'm lazy, i'm struggling with internal prejudice, i get angry and snap at people too easily, and overall contribute very little to the world around me. I sit on my arse most of the day, thinking "i'll do something eventually", and consider 2 hours to be a lot of time to invest into something. I get so busy thinking about how and how much i want to do things that i don't get around to doing them. I say i need a job, and proceed to do jack shit to find one, hoping that it'll just fall into my lap. I look at the long list of studies that the local university provides, and conclude that none of them seem interesting. I feel like i'm completely squandering everything that i'm so lucky to have.
And yet, even though i know all of this, i don't feel like i'm fully in control of turning it around for the better. Probably partly because i don't know how to go about it. Problem is, at an age of 25, i'm supposed to know, and anxiety makes it hard to go ask or learn by trial and error. Christ, it's frustrating sometimes.