Symptoms advice!

So this is my first pregnancy! I have a few questions

I have been experiencing extreme dizziness, the kind you have to sit or lay down for because the entire room is spinning. Secondary to this, I feel extreme nausea. Any ways to alleviate these symptoms?

Also, is it okay to sleep more due to the extra fatigue or do I need to just fight through that?

I’m still experiencing cramping & dark brown spotting (not a whole lot but enough to saturate TP) is this normal?

Thank you all. I’m a few days shy of 6 week.