If you remember I had that mild vertigo attack when I over indulged in eating walnuts and raisins, so I cut them out completely for a while and have been feeling great, MM wise. I find I could take a very small amount now and then and be okay. Yesterday I bought a bag of pistachio nuts, omg I love them but haven't eaten any in about 2 years. I forgot myself and ate about 15 or 20 of them. I felt fine, no dizziness or anything until I was talking to my neighbor, we were in my living room she was on her way out so we were standing by the front door entrance in my house and all of a sudden I just fell forward, I didn't feel that strong push like I once did but if the archway wasn't there to grab onto I would have fell to the floor. I looked up the arginine content and it was not high like walnuts but was definitely higher than the lysine in it. Lysine: 421mg Arginine: 742mg (based on levels per 200-Calorie serving) Seems like nuts can really do me in. So now I have been limiting it to 5 pistachios and have been okay.