Need help with kratom

I need your help with my kratom cause I don't know what is going on

I'm new to kratom been taking it for 14 days and so far I can't get it to work right..

If I take 1-2 gram I might feel a slight chill after around 45 mins and then it goes away

If I take 4-5 gram I get really sick with nausea and vertigo

And no matter what I do after 3-4 hours I get really weak it feels kinda like low blood sugar shakes, nausea, dizziness and just feel like shit..

Strains I have tried so far

Red borneo Red Thai Green Malay Green Sumatra Yellow borneo

Green maylay gave me crazy euphoria at 3,5 gram but at the same time I had stomach pains and crazy nausea. And I have never been creative or wanted to do things on kratom cause I feel like shit..

Am I doing something wrong?