help?

Hey all,
So I'm pretty sure I ovulated on Sunday, April 23...bcz I had ewcm on Saturday and then Sunday morning I had very sharp pains on one side which lasted about an hour and then dull achy pains for rest of day, and it was cd 20. 
All of a sudden last night out of no where I got like a wave of nausea and literally felt like throwing up! Have been feeling nauseous since and dizzy and headachey.. is this normal? I don't know if it's from a lack of proper sleep (I've a 20 month old who occasionally wakes up at night, last night he woke up 3-4 times!). Should I be worried about this?
Woke up this morning feeling horrible..
Any advice? I don't even want to consider the possibility of conception cz of course it's too early for any symptom and I always psych myself out and then get upset when it's not a pregnancy! So trying not to think along those lines..we r ttc though.
Any help or advice will be appreciated! :)