@classicalcakery356 Welcome to Mayo Connect.
Your doc is probably correct, it sounds like classic plantar fasciitis. You need to nip this in the bud so you can keep working.
You said "I work a job on my feet, though, admittedly, i could be wearing shoes with more protection. I just hadn’t the money, which is neither here nor there." I'll tell you, as someone whose parents worked always on their feet, and hammered home the necessity of good footwear, that you NEED to get good shoes ASAP.

Please, on payday, take yourself to a real shoe store and get a pair of well-cushioned shoes that have good support for standing and walking on hard surfaces.
Then put it in you budget - they will need to be replaced every 4 months or so- if you set aside $3-4 a week - that's just one latte or cheap burger - you'll have the money to replace them.
Not only will your feet thank you now, but also in 30-40-50 years, when you can still walk and your Croc & flip-flop wearing friends are limping around.
Good luck.