Since he is not well shower him with more love and care. Strict have to but not all the time. He needs your love. Talk to him, he might not fully understand but still explain n talk nicely. Sometimes have to pamper u must pamper. Cannot say he is pamper by many and then u dun pamper. Is diff from other ppl and parents.
Try reward system if kid does something right, draw a star.. accumulate stars after a while and exchange for a gift
My baby does that to me too at 1 month old till now going 3rd mth!
My kid also throws tantrums when she don't get things away
Try naughty corner to discipline kid