I'm frustrated

It is amazing how, in a day, frustrations can build up. Today, our 7 y.o. continued to have occasional diarrhoea. He seemed sparky, but every now and then a rush to the little boys room. So he's still home. I've had to cancel tomorrow - the day I'd planned to indulge in some leisurely shopping for me. First frustration. Second frustration. Getting the boys to swimming. I'm lucky, David usually does this. It wasn't too bad, except that our ill son looked pretty flaky. Poor kid, getting dragged to school for pick-up and then to swimming. But there was no one to leave him with, so in the car we got. Third frustration. When we got there I realised that our youngest had forgotten his goggles. Pointed it out while we were waiting the half an hour for his lesson (shouldn't have) and he whinged and whined and cajoled until his ill brother finally relented to walk back to the car with us to retrieve the goggles. 7 y.o. decided he couldn't walk all the way to the car, so I said to both of them to wait for me at the entrance and I'd drive around and get them. Did they believe me? No, 7 y.o. changed his mind while I was walking and 4 y.o. came running through the car park a fraction later as I manoeuvred the car back to his spot. He almost ran out onto a busy road. I raced home trying hard to stay to the speed limit; we only live about six minutes from the pool but several traffic lights bar the way. Dashed into the house, retrieved hotly desired goggles and raced back to the pool, all while our 10 y.o. did laps of the pool in his lesson. Dragged our sick 7 y.o. back into the swimming pool arena. The next one blindsided me. 4 y.o. who loves water, refused to get into the swimming pool. He was pretty creative in coming up with excuses, from "I'm shy" to "I want to swim in that lane (next one)." After all that I'd done to ensure he'd have a good lesson, I could hardly believe it. Sat next to the pool stunned for several minutes, occasionally expressing my disbelief to my sons. At least our 10 y.o. had a good lesson. And the kind lady at the front desk said that we could have make-up lessons for both the younger ones. She is not obliged to do that, it was a soothing balm to my ruffled soul. Now all I need is my husband home so I can verbally offload the whole frustrating story. But, there are still six sleeps left.