Hi Paulos,
One of the biggest things I learned in recovery was to pay attention to my side of the street.
You have no control over the reactions of others no matter what you do and to do things (such as picking up more chores) in anticipation of a particular response from the others in the household can only lead to frustration as I found early in recovery that nobody ever appreciated my efforts as much as I thought they should. The emoticon you used is VERY appropriate to trying to make people appreciate me as much as I think they should -
Look at what you are doing in regard to the big picture - try and look at it objectively. For some, doing more than they used to would still not be as much as the others.
Good Luck
Make them tell you what is expected and do it in such a way as to convey that you WANT to do your fair share but may not be certain what that is. Let them know that generalities ("you're not pulling your weight") isn't helpful and you need to know
exactly what your weight is expected to be in regard to the weight the others are pulling.
That puts the ball in their court (it's called assertiveness) and you will find out whether or not their expectations are fair or not.
Be aware that in some cases, the elderly expect that their share of "weight" should diminish as the younger generation comes of age and that's not always unfair. It could be that your Grandfather feels (from HIS perspective) that he's been busting his ass all his life and now that there are other who could be lightening his load he's STILL at it. May or may not be the case here.