For me, muscle tensing is a symptom and addressing it would not hit the source. In my case, blocking is caused by my brain’s subconscious defense to repeating/stuttering. Right when my brain senses a stutter, it blocks to avoid the stutter. For example: “The food is in the refrigerator”. My brain believes I will stutter on “refrigerator”, therefore I say “The food is in.. in.. BLOCK”. It won’t even let me get to “refrigerator”, likely a defense mechanism. Any pressure, tensing, ticks are just ancillary symptoms. For me, meds may work for a short time to help the symptoms, but it will not address the source.