Hey guys. My Cav, Liesl, is a year and half years old and just today she started acting very oddly. This morning she was hiding behind things in the house and seemed very removed, but then tonight she started acting just the opposite and was running around the house and looking up at the ceiling like she saw something. Sometimes she chases flies or other bugs, but always stops within 5 minutes. She continues to keep looking up at the ceiling and also trying to turn her head behind her to almost see what's back there. She keeps pacing as well as panting. In addition, she has been scratching under her chin for several months now, but I always assumed it was allergies. I just noticed now that she is also shaking her head often (2-3 times per minute). This couldn't possibly be symptoms for SM could it??? Any suggestions as to what I should do?