Mums of boys around 3 years old i need your help!

Morgan • Hey, im a stay at home mummy to my 3 year old son. They grow up to quick. My newest addition to my family will be here around 24th of may. Unsure of the sex yet but its very exciting 😊

My 3 year old son Cry's when someone wants to play with him. If someone chases him he starts crying if someone tries to tickel him he Cry's.

He does this even to me and my partner and I really don't know what to do. I don't want him to be a sook .

Please any advice to help would be greatly appreciated. I don't want my kid to still be like this when our newest family member arrives