Being strangled .

Hi , just want to know if anyone has spasms in the throat , I have just recently started having these spasms they are very painful, and leave me with a bruised feeling in my neck and jaw which can last a couple of days. I have not noticed any specific trigger though I sometimes have a warning sensation that it is about to start .I am allredy taking Baclofen 20mg three times a day . I have an appointment with my GP this week, so hopefully get some advice on what to do ,it can be very embarrassing when out with friends ,they are all lovely and caring but it still makes me feel awkward . any advice would be great.