Alpha Gal?

Could this mean I have alpha gal? The past tests I have had have been negative for Alpha Gal, Beef, and Pork. Not I have a tomato allergy (class 3), a milk allergy (class 1), and a lamb allergy (class 1). My allergist said I could have alpha gal but test negative. Is that possible? I have Autonomic Dysfuction and have been getting random hives for the past year and flushing. I was tested last May and last August following a tick bite in May and they were both negative.