Daydream symptoms and conditions

I am on 300mg for bipolar. I am having trouble concentrating, remembering (i forget what i'm doing while i am doing it!), I often worry about driving-just don't feel like i can focus well enough-riding down the road thinking "hope i know what i'm doing". It is like i daydream constantly with periods of not daydreaming. I feel pretty cheerful and not having any real emotional problems, but the physical problems are a mess. I am so tired that i feel like every single day is a "well i'm sick today, i'll give myself a break, maybe i'll feel better tomorrow". i do have better days sometimes, but for the most part, i feel kind of useless-not "useless" like i'm depressed-i mean "useless" like i get nothing done and it takes me two hours to get some lunch for myself and my three-yr-old child, and i mostly sit around because i'm "taking a break" and my legs are so sore or i have a headache or i feel shaky, or nauseated - each day, i feel so sleepy i am desperate for my husband to get home to care for my daughter (and me)-it feels like i took NyQuil or Benadryl or something! So, i am literally pretty useless. It's such a shame. I can't find a medicine to help me cope, it is always a trade-off...and going on and off them to try another is a nightmare. At least, right now, it is just a daydream...

I am extremely sensitive to SSRIs and most drugs that affect the CNS. However, Paxil always seemed to be a miracle drug to cure depression, at least until I have to taper off of the medication. I've been on and off for about 4 years now, because it always seems to make me too high to function, no matter how low the dose is. This time I came off of a low dose of Paxil after a couple of weeks (my body simply can't handle it).
The side effects seem to be that I never really went off of the drug. My thoughts are not as complex as they were, my libido is almost non-existant, I pay little attention to detail, and I can't get stressed about anything (not even to get my work done). My memory is bad and I don't fantasize or daydream about anything. It's almost as if I'm stuck in the present constantly, not thinking about the past or the future, thus causing little thought before I speak or act (thought about the consequences).
I don't know when this will end. It's been months and I feel slightly braindead, but happy. I need to bring myself back to normal so that I can do well at my job (I have a fairly high level job in higher ed), and plan for the future... back to grad school.
Oh, one last side affect is that if I do get pushed into anger or annoyance, about a second later I can't even remember what I what the outburst was about, while the other person is still recovering from the outburst. Not a good thing at all. I wonder if anyone has any suggestion or similar experience? I can't wait for this to be over, if it ever will be.