It's important to note that feeling vibrations or any other physical sensations when near someone else could be related to various factors, and it's not possible for me to provide a definitive answer without more information.
Given that you have mentioned having a bad anxiety disorder, it is possible that your anxiety might be playing a role in your boyfriend's perception of vibrations. Anxiety can manifest in different physical symptoms, and one's heightened emotional state may be sensed by those close to them.
However, it's also essential to consider other possibilities. For instance, there could be a medical or neurological explanation for the sensation your boyfriend is experiencing. It's vital for him to communicate his feelings to a healthcare professional who can better assess and investigate the situation.
Ultimately, discussing these experiences with a medical professional, such as a doctor or a therapist, is the best course of action. They can evaluate both of your perspectives, consider any relevant medical or psychological factors, and provide appropriate guidance or referrals if needed. Open communication about these experiences can help you both gain a better understanding of what might be happening and find suitable ways to address any concerns.