Hi, I have a 3 year elderly son, and are late within life parents. 'Growing pains' issue is valuable, but w\fever?

The finishing few days our son has have them off and on but it is beside a fever and he seem in pretty bleak pain. More so that I remember beside my own as a kid. the fever member leads us to assume it's a flu or virus cause joint spasm mostly in his knees, calves, and ankles. Or are we rotten base? Is this a Dr. look in issue or should we wait a morning or so to determine that. It's the fever that make us wonder if it's more tahn "growing pains". And he is also adopted, so some medical issues are more of a concern due to the msyteries of his genetic milieu. Thanks for any help you guys may hold!
Answer:

Left arm hurts Right arm Dosen't (REVISED)?

You need to rob him to see the doctor. I was told as a child that I have growing pains. Well, I'm now 66 and must still be growing. I own lived with rheumatoid arthritis, degenerative amalgamated disease, spondylosis, and scoliosis since I was 15. If here is such a thing as growing pains, it wouldn't produce fever. That's from an inflammation somewnere in the body.

When working out my Biceps, i grasp pain similar to shin splints in my forearms. What is it and how do i avoid?

it could be a virus
but best to help yourself to him to the doctor for a check up
to be on the safe side

Should I budge and see a doctor... could this be serious?

ya go to the doc, it may be as simple as a virus but it could also be unbelievably serious especially if the pain is single on one side. if this is the case jump to the doc now otherwise receive a walking appointment.