What's a normal blood sugar level?

I am not wanting to go to the hospital during this pandemic unless absolutely necessary but since yesterday i habent been feeling the greatest, yesterday I had 3 episodes of feeling very light headed and nauseous and like I'm gonna pass out this morning i wasnt feeling very good and it only got worse as the day went on (I managed to stay at work for 2 hours) now I'm was 320 pounds before I got pregnant and now I'm 325 I have only gained 5 pounds I dont know whats a nor.al blood sugar level for my size n my Dr never told me my levels at my last visit... Anyone know where i can figure this out?