My Toothache Schedule

I'll start at noon...
12 pm: intense pain
2 pm: pain subsides... I mean, it gets more bearable, so I decide maybe I don't need a dentist right away.
6 pm: pain gets really bad again
7:30 pm: I take a pain reliever. Today I took an ibuprofen because I read somewhere it had an anti-inflammatory effect.
8 pm: pain gets better.
9 pm: pain is still ok, but I start freaking out. What if... it's something really dangerous?! What should I do?!
6-7 am: I wake up still freaking out, although pain is not that bad in the mornings.
7:30 am: cleaning procedures
8 am: pain is fine. I decide I don't need a dentist because it is healing...
12 pm: pain gets really intense again. HELP!

The cycle repeats.

Problem development: First, it was the gums, upper right side... Or so I thought...
The painful area grew smaller and smaller. No color-change. The gums were a little swollen, but they are not any more. Not even raw. Maybe only a little around the sixth tooth - which is the epicenter of pain now.
The inside of my cheek is raw, though, because of my saltwater treatment. No gum abscess it seems. I am very strict on oral hygiene these days. But I always brush my teeth for 4-5 minutes a day anyway. I bought Listerine to add to my oral care.
And I now I don't know what to do... ;(
On the one hand, I don't even know where I am supposed to go to ask for dental help... I just want someone to fix the tooth. Just that. No cleaning and cosmetic procedures. But of course, they'll make me pay for so much more than I absolutely need. Lesson already learned, unfortunately. :(
On the other hand, I don't have money. You pay $45 to be examined by a student... I have no idea how much you pay if you go to a real dentist. It's not like the Penn Dental Clinic would give me an emergency appointment anyway. No openings, you see.
And then, if it is really a toothache... What if I am given the option to either have the sixth tooth extracted or healed, but the healing costs so much that I cannot afford it. I don't want them to extract my tooth. ;( I can afford to have is saved in Bulgaria. But is it going to be too late? Then, even extracting it in Bulgaria will save me a ton of money. But what if it is more serious and requires immediate help...?! But they don't have emergency appointments left here anyway...
And finally, if it is nothing scary and will just get better on its own... Then the exam money would be totally wasted and I am seriously sort of broke right now... Or at least, I certainly don't have any extra money to waste. Plus, I don't even know how much I have to pay...
I really don't know what to do. This whole thing is completely and absolutely terrifying. ;( I don't have a dental insurance. I don't have any money, because this whole thing is totally not in my plan. ;( And I am scared in general. I want my tooth! What should I do????
HELP!