"Xray department"

I want to leave this review because this needs looking in to. I am asthmatic and was sent for a chest xray because I have had severe breathing issues since March. NHS guidance states I am exempt from wearing a mask although I still try to wear one. I cant breathe after about 30 seconds of wearing one. Despite me repeating this over and over 3 members of staff continued to say I had to, even after I said I was going dizzy. I was then told that well they had to wear masks all day. My arms were pulled back for they xray without checking that was ok and this pulled on my shoulder injury. I had no idea this was going to happen or I would have said I had one. I was in a vulnerable state after them asking me to remove one gown, I was left with one on that was open at the back, going dizzy and then facing forward I had no idea my arms were going to be pulled back. I gave the utmost respect for the nhs and none was unkind, but I feel this experience was unnerving and could have had a much more impactful effect on someone less resilient. Why dont your staff stick to mask exemption guidelines?