I dont think switching the time you take your pill should have made a difference on making you sick...however, i do remember when I first started the pill for the first 2 or 3 packs i felt TERRIBLE all the time, I'd get random headaches, dizzy spells felt nauseated and it was like you, it would come and go..and i read on the pack that this was something that could occur for the first 2 or 3 packs..so i thought to myself, ok, i'll give it another month and if this keeps happening i'm done, no more pills..sure enough my body finally adjusted to the horomones i guess and I'm fine now so maybe you're just still adjusting to the pills, you did say it was your 2nd pack....
also, I had a related question to this topic and didn't want to post a new thread...yesterday I came down with some case of food poisoning I guess and got sick, threw up..it was 4 hours after taking my pill...so I should be fine right? any feedback welcomed!