For a few years now I've been getting a weird bump on the exact same location once a year, specifically in May. I've got it again, and it starts out extremely itchy, but then stops itching after awhile. Again, it only ever happens once a year and when it does happen, it's on the exact same spot on my stomach. I've tried to look up on it but I haven't been able to find any really plausible answer for it.