Oh boy.
Did you pull out your hair yet?
I feel for ya.
Try telling him "You and me are a TEAM. Mommy is sick, I need help. Can you help Mommy? Be a big boy? I would really appreciate it...."
All I know is, with my son... when/if I am not feeling well, he sorta steps up. I will ask him to help me, I am not feeling well, I am sick.
Just like how Mommy helps you when you are sick, do you mind helping Mommy? Mind you, I don't tell him to do things that an adult should, but little things...and he really feels "proud" he is helping his feeling-sick Mommy. And... it keeps him busy. ;)
So, instead of slapping my head in angst/irritation/no-patience... I ENLIST my son, to "help" me... encouraging him that way. Try to engender a "TEAM" thing, for him.
And that helps.
It really impresses me when my son does that. Once I was sick and he even told me "Mommy, if you need help, just ask me okay? And I'm right here..." He said it to me as though he as a "Man."
Putting on his real-big- boy pants.
LOL
But it was nice.
3 is an awkward/hard age.
And well, both my kids have naturally LOUD voices, and I am noise sensitive. What Mom isn't. So I just tell them, "lower your volume, Mommy's ears are full... and then I will be no, fun..." And they get it.
But even when my eldest was a Toddler and her brother was a baby... i always said WHISPER BROTHER IS NAPPING..... Shhhhh.... and she did. And she would tip-toe.
And do quiet things. I had "nap time activities" for her, if/when her little brother was napping.
I also tell my kids, if/when they are contrary "You CAN have your opinion. Fine. BUT we STILL HAVE TO DO THIS, now."
And I just get going.
Or, give your boy a longer heads up. Meaning, if you have to leave in 15 minutes, tell him from 1/2 earlier. That way, even with his dawdling... you will be still on time.
The getting out of bed thing is a phase.
Don't worry.