Okay so in the next few weeks I will be receiving the booster for tetanus, diphtheria and polio (one shot) and the HPV jab (3 shots over 6 months), whenever I'm in the line to get my jab done or I am just about to get it done I always psych myself out and I shake and get cold sweats, most of the time I hype myself up too much and I pass out for about a minute/two minutes, how can I calm myself and stop myself from doing this?