Question for RN or Physicians - Serious

So for the past month I have symptoms of something - getting worse so I assume it's serious

Overall I feel fine but for past month I have terrible pain in lower extremities(think sciatica- worse when laying on right side) coupled with bad constipation 4 days to go - I am assuming can be anything from diverticultis to something worse like a tumour/cyst sitting on my colon or an actual colon issue - I also saw that this could be embolism as pain goes up to right chest - all on one side

I had a colonoscopy exactly 1.5 years ago and doc(also my primary care) said he saw 'inches of healthy good colon'

I am a heavy drinker but cut down

My doctor is a state away so it's an hour drive

I have no health insurance and pay out of pocket - last colonoscopy and endoscopy cost me $1000 + the checkup was like $1400 total

I've been holding off because I am broke and was thinking stupid logic 'I can always go to the ER'

What do I do? Do I call my doc? do hospitals require PCR testing to even get through the doors?

Any help would be appreciated