Unfortunate truths

I have not done any exercise today, which I should have done.  My feet hurt, which ironically, should have been a clue.  Ever since I gained weight, my feet have begun to hurt worse than before.  There are or have been bodily changes that are unwanted that I didn't have before.  I was frustrated but I realize that I have to learn to do this by myself.  I was told to start off slow, which is what I did.  However, I don't wish to start off slow only to stop every time I have soreness or pain.  I am being honest because of this and because I would like to actually lose weight within 2 lbs per week, with both diet and exercise.