I am 6wks pregnant and have had noticeable syptoms but literally overnight the intensity and frequency increased drastically. what could it mean?

Increased Hcg levels: Interestingly enough, most people begin to have morning sickness or at least get their worst symptoms starting at the 6th week of pregnancy when the pregnancy has fully implanted into the uterus and really begins to produce a lot of Hcg, which is the pregnancy hormone associated with nausea and vomiting. Try small meals, ginger, crackers in the morning. Good luck.