Re: Killer situation
Based on this statement above, clearly there isn’t any immediate “NEED” for you to move to Pakistan. Yes your parents are elderly but by your admission, they’re currently healthy enough to travel and be involved in other activities on their own. As of right now, your parents are capable of living/enjoying life without you being there every other day.
I think your #1 priority should be getting better…dealing with your brain tumor. If you’re truly committed to helping your parents at their old age…well then you can’t do that if you yourself are ill. Same concept with suicide. You can’t help your parents (or anyone else) if you’re dead.
Focus on getting better physically and also please get some counselling. Your wife physically abused you and your low self-esteem is making you think that you somehow deserved it. Physical abuse is never ok. So before you think of helping your parents or anyone else…you need to focus in improving your own physical and mental health.