I have all the symptoms of BMS. Went to dermatologist and ENT and had all the test-blood work, mouth swab and even35 patches on my back to see if I am allergic to anything. I have had this BMS on and off for the past 2 years. It starts with my lips swelling up. It looks like I had a bad Botox job. Luckily that only lasted for 2 days but the tongue and roof of my mouth still feels like I scolded them and the lips remains sore. Is this the symptoms you had? Where is your doctor located?