I ate a few handfuls of almonds, quite rapidly, and within a few minutes I had severe pain in the mid-breast area penetrating to the back, similar to a gallbladder attach. I thought I was having a heart attach. I took some alka seltzer, and the pain finally subsided, but it was sever enough to want to go to the hospital. I don t think the almonds were digesting, and now I am scared to eat nuts. I am 66, work out like a demon, in great health.