 [ Symptoms ] my husband is having trouble getting and keeping and erection  he says that it feels different like it is not there like he cant feel it he knows it is there but the feeling is not unless he touch it he still feel it when we try to have sex but other then that it is different he had a testosterone test and it came back normal so we are looking for answers if possible of what it could be he does not drink or smoke or do any kind if drugs he is 38 years old and it has been going on for a month now [ Disease ] to my knowledge no one has invented an internal blood pressure monitor nor do i think there would be a use for something this invasive do you want to invent one there are plenty of telemetry devices that will take your blood pressure automatically at prescheduled times this is commonly done in hospitals like intensive care units to put an internal device inside you like a pacemaker or defibrillator would seem to be more risky than just taking the blood pressure when you need it