Cephalexin Monohydrate and vomiting

I have been taken Cephalexin for 4 days now, 500mg my pill is red. My side affects are loose bowels, stomach boiling like it maybe upset, and a very bad case of the burps .Although it is hot air that come up. It leaves a very nasty taste in the mouth and almost makes me want to vomit. I also feel as though I could go to sleep every time I sit down .

I am taking Cephalexin 500mg/4x per day. Today is my 2nd day (5 more days to go) and I have tiny red dots all over my legs...it itches......and my arms and back and scalp itch too!

Also, last night, after taking my 3rd dose of the day, my stomach started hurting, I started feeling quesy and my hands started shaking. Have you ever taken a vitamin on an empty stomach (especially a prenatal vitamin) and felt nauseated and maybe even threw up because of it? Well, that's exactly what it felt like. I did end up vomiting and my (pls excuse the grossness) vomit was green. I still had no idea what was causing all this. It wasn't until I came on here today and read all the posts that I realized that all my symptoms were due to the Cephalexin, which are green capsules!!!

Oh I have been having headaches too, only been on the Cephalexain 2 days, I get a very very upset nauseaous stomach feeling like I need to vomit, go from being comfortable to feeling very very flushed and woozy, found laying down and sleeping is the only thing that makes these feelings go away, of course I am on a 10-day course and I dont think my boss will like me laying down and sleeping! This sucks!