So basically my index finger on my strumming hand has a slight lump between the knuckle and the middle joint and it tingles and stings slightly, but feels very numb when I touch it. Yet it doesn't bother me at all when playing

I usually play about 4 to 5 hours a day and only noticed this thing with my finger yesterday.
Can someone enlighten me as to whether its bad or not and that I should take a break from playing.
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how the f do u play for like 5 hours?
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It sounds like you're simply straining it.
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Next patient.
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