The strangest thing happened to me. I have eaten coconut my entire life. Since I was a kid, my favorite dessert has been coconut cake and I always have seconds. The point being that I have never had an adverse reaction to any coconut I have eaten, no matter how much I consumed.
Then over a period of a couple weeks, I began to notice redness and welts on various locations of my body from time to time. Of course, I self diagnosed and tried this and that, but the symptoms continued and then I started experiencing congestion, which got worse and worse with time.
All of these symptoms began at the beginning of spring, so, among other culprits, I concluded that pollen was the problem. I started taking over the counter allergy pills, but this didn't help my condition.
Eventually. I had to abandon my attempt at self diagnosis and make a trip to my doctor instead.
After a series of test to determine what I might be allergic to, the doctor concluded that it was coconut. As it so happened, one of the lotions I was using had coconut oil in it. Eating coconut had never bothered me, but rubbing it directly on my skin had caused me to develop an allergic reaction.
I still eat coconut, but I am careful to avoid skin products containing coconut.