Feeling useless

My husband is in the worst pain of his life and I hate that I can't do more to help. I offer a hand, some prayers, fetch him some water and get his pain Meds. I sit up all night with him by his side waiting for his pain to ease. He tells me thank you for being there and I reply, "where else would I be? " I was just returning the favor really. For all the times he was at my bedside, feeling useless. When we had each girl, when I had gall stone pains, and when I had postpartum hemmharaging he was the one fetching and offering a hand and prayers. The one trying to sleep in an uncomfortable chair. Yep I guess this is what they meant in our marriage vows. In sickness and in health, I do.