Hi, If you don't mind me asking, how old is your boyfriend? Does he have any family, or friends?
I am sorry I can't help more. When it comes to having HA, a lot of it is personal. We all may have common traits, but sometimes how we got here is different and how we carry it out is different, so I can only speak from my experiences. I myself have had HA tendencies for decades (like, if I had a headache, one of the first thoughts would be that I would have is "hope it's not tumor", but these were passing thoughts and didn't totally affect my life, though I am sure it’s not good for me to think this way, and must be frustrating to the people around me when I did this), but for me, I have had HA episodes that last a few months at most, and then go away because I get to work on myself. I went years between one bad episode to the next (and I believe that a lot of the HA came back because I got complacent about working on my anxiety, and I let it get out of hand). Looking back, I see a pattern to my episodes and the pattern usually indicates that I was trying to avoid something painful or extremely upsetting. I am sure that it's upsetting that your boyfriend has been living like this for decades. Do you know much about his life, like why he is anxious to begin with? This could sometimes help explain some of his HA. For example, both of my parents are anxious people, and whenever we were ill as children, they automatically assumed it was something bad. My therapist has suggested that a lot of people with HA may have received a lot of attention when they were ill, something that they usually didn't receive otherwise. Sometimes they will subconsciously associate being ill with being comforted, thus loved. I could say that there may be elements of truth in that. Does your boyfriend have a pattern to his HA? Does anything in his life indicate why he is extremely anxious? How does he handle things that would trigger his anxiety?
I am sure that there is a certain amount of regret and guilt associated with living years and decades with HA. I've struggled with that myself for being so distracted during my most recent HA episode. I suppose this can happen with lots of issues people deal with. However, I cannot imagine that a person would rather live in a delusional state over reality. Unless they feel that a constant delusional state is easier to face than the ups and downs in life, not just as a tool to avoid some unpleasant times, but rather, to be constantly removed from life. In this case, he may need to change his therapist. Also, a therapist would help him overcome a lot of the guilt and regret he may have about his HA. Sure it’s scary and horrible to realize that we have done this to ourselves, however, I for one would prefer to realize that I have done this to myself and know that I can change this about myself than to really have a disease/illness/condition. Sure this realization sucks, but I get the message that I need to change something about my life, and with this realization, the possibilities are limitless, whereas if there really is an illness, my input is limited. In a sense, to realize and accept that this is anxiety is liberating. But, you may be getting ahead of yourself and worrying that your boyfriend will not be able to handle this realization. He very well could.
We can't change someone. We can work on ourselves, we can support them if they are seeking help, we can be patient during times of trial, and we can suggest they get help if they are not getting it. We can tell them how they need to change certain things about their lives in order to have a better relationship with us. These are some of the things we can do in a partnership, regardless of what the issue is at hand. However, the person with the problem needs to decide to change, and stick with it. The only one that can change this is your boyfriend. If he is not even ready to admit he has HA to this extent, and that the anxiety can be causing all or most of his sensations, than there is only so much you can do.
Is your boyfriend at the point where he is opened to the possibility that his number one issue is not an illness, but anxiety?
I am sorry I cannot help you. I just want you to know that there is a way out of HA (I am working on mine and know many others are too).