T.F.
I am so sorry you are going through this. I hope my experience can help you gain some light on what you should do. Remember, you and your family are your number 1... you can only do so much and spread yourself so thin. You have to also remember that it is OK to leave your children sometimes.
I'm not sure hw long you've been on the site but in 10/2015 my husband of 27 years died suddenly from a heart attack at home with me. My emotional state and everything else has been very hard for 2 years. We ran our company from home and I picked that up and I do it myself now as well as continue to substitute teach, my 17th year.
Fast forward to 10/15/2017 (2 years after my husband's death and an emotional week).... my stepdad (83)who had been treated for cancer died. He and my mom (75) had been married 21 years. My mom, of course is devastated.
I am not in the same situation as you... my daughter is 22 and lives on her own and goes to college. She lives less than 30 minutes from me and we are very close.
I drove to AL to be with my mom (my hubby never would have allowed me to do that but I couldn't fly and not have a return date) and I was at her side for the small service in AL where they had retired and then I drove her to SC where he was to have a military service by her side, back to AL and then eventually back to TX. It was a grueling week. My body is still paying for it.
The ONLY way I was able to do this was because I run our company and I can do it as long as I have my phone and internet. My daughter and her bf took care of my house and dogs which saved me a lot of pet sitting money.
I felt like I had no choice to be there but at the same time, even with a strained relationship with my mom, I wanted and needed to be there. Unfortunately, I KNOW how she feels, I KNOW the heartache and the emotional spiral that happens because I am still adjusting to my new normal.
Does your mom live in a community where she has friends, church family, neighbors? I was amazed at the people who were there and still are (even after her recent hospitalization).
When my husband died, no family was here It was sudden and it was mostly friends here. The service ended, daughter and I just sat there, looked at each other and said WTH just happened? We live in an area that is not like some more rural areas where neighbors care and show concern. We were on our own. I do suggest grief counseling.. that helped.
Everyone goes back to their normal while you adjust to your new normal.
Even if you can't go to her, you can support her.... CALL, make sure she eats.. My mom stopped eating and just got out of a weeklong hospital stay.
Your mom, although through her pain... knows you have a family and children. I bet she would understand BUT........
It is OKAY to leave your children for a while. They will be ok and I know it would hurt financially possibly a bit but it won't hurt hubby to care for them 24/7 a little while. Think about the modeling you are doing for your children when they see you go take care of your mom. They would likely drop what they are doing and come take care of you when they see you being compassionate and caring for your mom. A little break from children is not going to hurt you.. they will be ok.
I hope you come to a decision that gives you peace and I am sorry you are going through this.