i'm at my wits end. i really need help, because i'm not sure if what i'm experiencing anymore is pins or not.

about 5 months ago i found out that i had pinworms, as a kid i had them once, and remembered the intense itch and uncomfortable feeling..so when i felt them a few months ago, i recognized the feeling and was sure it was the same thing. this was confirmed when i found a pin on my toilet paper shortly afterwards.
so i took Pin X which is the only medication available to me here over the counter, and here is where my experience this time differs from when i was a kid. when i was a kid i took a syrupy stuff, and this time i took pills, last time everything cleared up in one dose, but not this time.
i got the pins again a while later, maybe about a month, and felt the feelings again, saw the live pin on the toilet paper, and took the pin x again. things cleared up. i made sure to be very hygenic, cleaned everything thuroughly and often. i was so upset that they came back that i read a lot here on curezone, found tips about further ways to prevent it from happening a third time, and ate a lot of lemon seeds, garlic, pineapple, brown rice...

now i'm experiencing something different. this started maybe a few weeks ago, but i haven't wanted to take action because i don't know what's going on.
if it's pins, i don't want to take pin x again, because it isn't doing the job, and it hurts my stomach horribly for a full day when i take the dose.

but what i'm experiencing is not an itching feeling at all, but a wiggling feeling. it feels like movement, it's unbearable, but it's not itchy. it happens really bad at night, and keeps me awake all night, tossing and turning. some nights i'm able to stop this feeling by washing my anus with soap and water, and then it goes away for the night. but last night, i washed with soap and water, went to lay down, and it came back. it came back so badly (the wiggling, movement feeling starts to grow larger and larger until i'm forced to act), that i went and washed again. then i put a cool cloth into my underwear and against my anus to see if that would help the movement feeling.
before, with the pins, i would only feel them at night. whenever i lay down in a horizontal position now i can feel that movement and wiggle during the day at times. with pins i saw evidence of them on toilet paper, and now i haven't seen any evidence and no pin has turned up on toilet paper or with washing at night. i use a dark facecloth and check it for pins.
this happens every night, and i'm in bed wiggling around and tossing and turning and feeling absolutely miserable. sometimes it will go away for a few days, then it comes back.
it seems like i've been dealing with my bum for so many months now, and i'm so upset and don't know what to do anymore.
i've read for hours on this website about how to take care of pins, and i don't even know if what i have is a parisite or something else. i don't know how to get rid of them for good, there's so much information on this website that i'm completely overwhelmed.
could someone please help me?

ps - one night i felt the wiggling, and remember reading that somebody put vaseline and garlic in their underwear to make the feeling go away. i did this, and it started up ten fold, my anus was clamoring so i went and washed it all off. then the feeling completely stopped and i slept soundly.
but last night when i washed, the feeling didn't stop like it has been.. i haven't been overwashing, just once does the trick. last night i washed twice and then just was tortured all night as this didn't ease anything.

please help as i just feel like crying and ripping my hair out, i'm so upset and don't know what to do anymore to have this solved once and for all.