5 weeks

So I’m 5 weeks pregnant with my second baby today. this morning I woke up super gassey and that lasted for about a half an hour then I got some horrible nausea in my upper left side I’m getting the chills and then I start sweating, if I stand up or am doing something for to long I have to instantly sit down because of dizziness...nothing is taking my nausea away unless I’m in the child’s pose leaning over my stomach...I haven’t had any pregnancy symptoms until today besides being tired... what do I do? Is this normal?