My dad has had constant diahhrea for a while.. He can t digest anything without it going right through him. He has lost around 60 pounds because of this in a little less than 2 months. He is confused quite a bit, and he can t remember where he slept last night, or woke up this morning...(this has happened multiple times.) He has Tourettes, ADHD, bipolar disorder, insanely high blood pressure, and is agitated 110% of the time. He has a history of alcohol and drug abuse. Recently, he had an ultrasound done and they found sores inside his stomach which have been left untreated. Its obvious he s not healthy, but what could be causing these recent confusive moments or temporary loss of memory?