Could I have preeclampsia?

Currently 36+4 and the last few days I’ve been getting dizzy on and off. I’ve been dizzy for several hours now, have a headache although it isn’t a severe one, I’m nauseous, short of breath on and off (for the first time in weeks because baby dropped at 33 weeks and I’ve been able to breathe since then). My heart rate is a little high (110-115), my legs, hands, and feet have been swollen the last few weeks but I figured that was normal, and I normally have to pee every 30-45 minutes and in the last 2 hours and even after a bottle of water I had to force myself to go and might not have even gone enough for a urine sample. Am I just panicking or can it come on suddenly like this?