I am a woman of 47 yrs old and have been working most of my life, as a result of all the physical jobs I have?

had, finally the last 8 yrs. have taken its toll, and I have been diagnosed with dengeneration of the spine, a hernia, fractured knee, and menopause, I have been single, and I all got to me and I decided it was time to make a change, I decided to move south and the problem is I have a grandson that worships me and it broke my heart having to leave, the thing is my daughter, my mother, and all my family are angry at me for leaving, but none of them care to hear why? so now I am considered the bad person, and it had torn me to shreds to leave, but am I wrong?