Bug bite??

well the other night i was outside very late at night and this morning i noticed two marks near my knee that looked like two little slits... im wondering, is this a bug bite? spider bite? it's swelling up and turning black and blue on and around the bite, but where the marks are don't look like what i'd expect a bite to look like, they just look lke two slits.is this a spder bite? if so do i need to see a doctor?
Answer:
If I was you I would definaitely go see a doctor. It could be any number of things, but if it's two little slits, I think it may be a snake bite :(

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I would see a doctor just to be sure..that sounds painful.

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Whether it's a bug bite or not should be the least of your worries if it's turning black and blue...

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