Its a phase.
Kids go through that. It is their imagination and changing cognition.
Normal. But sure, for us adults, it can be, onerous.
But he is 5. So you can tell him "Mommy can play for 15 minutes. Then I have to wash the dishes... " In other words, you have to cue him... that there is a "beginning" and an "end" to things. BUT that HE... can continue playing. A kid, needs to learn to do things on their own, too. It helps with self-reliance and problem solving.
Both my kids did that too.
But, I also... would tell them that Mommy has things to do too. It is normal house stuff. And kids, get to know the daily house routines. And that, there is a time to play w/Mommy and a time when she cannot. It is also important... for a kid to learn that.
We cannot, be.... a continuous Mary Poppins ALL day.
Though my kids went through phases like that too, they learned how to play on their own volition, and on their own, too. A kid also need to learn, to deal with it. It is a part of development.
It is not "bad" that we Moms cannot do EVERY second of being RIGHT there, playing all day.
A child NEEDS to learn, normal everyday routines too, of Mommy and the house.
Otherwise, they "learn" that, Mommy is less important.
Don't feel bad for running out of things to do. Sometimes, that is just life. I then tell my kids, that THEY can come up with things too. And they do. They are very self reliant in that sense. They don't DEMAND... that I spend EVERY SECOND of my time in the house, entertaining them. We are a family, we all have things to do, there is a time and place for it, there are routines of the house and family, and it is good, for a child to also be a PART of that.
And your son is 5... this is a good age, to segue into this with him.
I have 2 kids that are 6 and 10. And they are VERY active. Even when my daughter was an only child (my kids are 4 years apart), and it was only me and her... I also did what I said above. I spent a lot of time on her/with her and was attentive to her needs... but at the same time... she learned that Mommy has a house to run and things to do, too. At those times, there is her time... to play independently. And she did. But as the Mom I was always there for her. Being there for a kid does not necessarily mean... that you have to ALWAYS be right there next to them, playing.
Everyone is the house, has roles. And things to be and do.
Teach your son, that there is a beginning and an end, to things. ie: play for 1/2 hour doing such and such, then, Mommy cleans the kitchen. For example. And then he can play by himself. A child needs to learn, these things.
Your son is 5... is he in school yet????
Or have play dates for him.
Some days, are not all just continuous play. That is life.
A child, who learns to play by themselves, is not a bad thing. It teaches them, other things than just being passively entertained. Or that someone always has to entertain, them. Their imaginations and self-reliance, has to develop too.
When or if my kids are bored (which they rarely are), I tell them "GOOD. Now you can think of something on your own. Mommy has to clean the house and prep dinner..."
Your son is 5. Teach him how to do things around the house TOO.
Teach him, now. He is old enough.
Teach him, how to be a part of the house, about helping Mommy.
My son is 6, and since he was 3 years old, I taught him how to cook. Even with my daughter I started that at 3 years old.
And my kids, can, cook.
My son can make eggs from beginning to end, make sandwiches, make cereal, help he chop things and stir things and helps me cook. He knows how to use a microwave & my daughter too. My daughter, can make crepes, pancakes, omelettes, pasta and she is really a good cook. She at even 8 year old, was cooking and able to cook, unlike her classmates that same age.
And my son, even likes vacuuming. And mopping.
He feels "important" doing those things and helping.
Even if he doesn't do it as well as me (an adult) he CAN do it.
It is life. It is family... routines.
A child has to learn to partake in that.
So, teach your son, HOW to do things in the house too.
A child need to learn that.
HOW to be a part of the family.
It is not just them, being the only priority.
Mommy has things to do, too.