At 3-4 weeks I didn't have too much for symptoms. I remember being constipated and bloated pretty bad, and very sore breasts. At around 5 Weeks all the nausea and crap set in pretty bad (: and from then on I threw up my whole first trimester :/ lol
I'm 31 weeks & all I remember is being super tired, gagging at everything that looked nasty, craving a quarter pounder w/cheese, frappé & nuggets w/sweet & sour sauce from McDonald's, & just feeling sick all morning but never threw up
I'm 9 weeks now but at 3-4 weeks I felt all the symptoms your experiencing but they've increased each week.plus I'm tired all the time.