You might want to do a couple of things. First, switch to one of the oils recommended in the oilpulling.com protocol. (Sesame or sunflower.) Second, you did not say how long you are pulling, but you might want to begin with a shorter amount of time and work your way up to the 20 minutes recommended in the protocol. It sounds to me like you are having a detox reaction and that moving more slowly might cause less to be stirred up and sent out at once, so to speak.