Mhopset,
I understand your frustration, not really from personal experience myself but from my best friend's struggle with lupus. I know that there are many days that the illness and especially the "chronic...never ending" part of it really takes it out of her. It is a constant battle to keep her spirits up. I can't speak from her perspective, so I'll speak from mine - as someone who loves someone who is disabled.
I don't know if she feels like a "burden" or not - I presume that there are days that she does. She can't work anymore and her husband is struggling financially. It's difficult for her to even help at home. Nevertheless, I'd absolutely do anything to keep her in my life (as her husband would) - I would be devistated if she wasn't with me anymore.
When her illness gets worse, I get worried. I get worried that I will lose her to the disease and I get worried that becasue of the incrediable discouragement that she feels, she'll leave me (and her husband and children) on purpose - that really scares me. She is funny and smart and a beautiful spirit and she is my soul mate. I don't know what I would do without her - I'd be lost. So, when I go to her house and clean for a couple of days, or send gifts in the mail to make her smile, or take her to Disney once a year so she'll laugh- my time, effort , and money - that is nothing to me. It is worth ten times that to have her with me, in my life, making me whole. So, if she says "I've had enough, I can't do this anymore." I tell her , "Suck it up. I need you....and I love you. You can't leave me." Is that selfish of me? Maybe, but she has great value to me and I won't let her think she has lost her value as a person - because it's not true.
I guess what I'm saying is that, yes you have legitamate reasons to vent - and you should vent from time to time because no one could keep that inside and still be healthy (and personally I think this is a good place to vent a little)-
but don't give up, because you have a purpose in life and that purpose is to help those close to you learn to love - give love and receive love. And most importantly, you are a model for your son. From whom else would he learn what it is like to be a man with true character? And to be a man even when faced with challenges.
Boy have I ever said enough....especially to a complete stranger! I hope this was helpful. It was meant to be. I hope I did not overstep my "internet boundries" (?) or whatever.
Have a better day,
Puffy2