Weird Limping

growing pain? I did that a couple times when I was young and the doctor told my parents it was due to growing pains. I say give it till Monday if it remains painless then take him in.

Did you check the bottom of his foot?
If it is a slight limp you may want to wait a day and see but if it continues I would have the doc give him a look see.

Maybe his shoes are too tight. Kids have weird growth spurts!

Something like that happened to DS when he was about 2. He had a cold a couple weeks before and then just one day he would fall to the ground when he tried to put weight on his left leg. Too him to the Dr and took ex rays and blood tests and complete history. The Dr. Told us that sometimes when a child has a virus that it can settle in joints before it works through the body. He told us to give him a few days and bring him back if it did t improve. He was fine two days later.
So, if it were me I would probably wait it out a day or two if he wasn't complaining of pain. If he was complaining I would take him to the Dr.

Kids do have weird growth spurts. So maybe he is fixing to grow and the muscles are strtetching and cramping.
Once DS let his toenails grow too long and we could not figure out why on earth he was having trouble walking running etc. He was older and well able to take care of these things himself. Imagine how embarrassing to find that his toenails were the problem. DD's leg muscles we would not grow as fast as her leg bones and she had periodic bouts with discomfort.
Maybe try warm soakes in the bath tub and a rub wiith moistising lotion. Good for the skin but more for the massage.

My middle son did this when he was four. Started limping. I would ask him, "does your leg hurt? does your foot hurt? " He'd say NO to everything. I looked him all over. Couldn't find a thing. After four days of limping, I couldn't take it anymore, and took him to the doctor. They xrayed, and found he had a broken ankle. Talk about feeling like Mom of the Year!! Ugh. The doctor asked him why he wouldn't say his ankle hurt, and my son says "some hurts don't need to be talked about".... Seriously. From a 4 year old. Never did know exactly what he did to break his ankle, because he was a very rowdy boy, and we could never pin point it. But I learned then to never trust them to be accurate of their health and well being at that age, and if mommy instincts say 'go to the doctor", then do it.