Precum??

It seems to come in waves—but I assume it’s related to what I eat. I read that celery can produce it, and I have observed more of it when I’m eating a lot of celery. Recently I’ve been leaking a lot of precum, and I also recently started taking L-Arginine. I’ve wondered if there was a connection.
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As soon as I start to get even a semi it starts welling up, when I'm fully hard it's like a constant ooze of slimy precum. I've just always thought it's the body's way of producing a natural lubricant for intercourse, I've never known my dick to do any different to be honest. There has been occasions when I precum a lot more than other times but I couldn't say why.