Random Feistiness Lately

[HLSLeO]

hello again guys... hope all of you are well!
i have a question... my little guy has been acting strange lately when i reach in to grab him. when i reach into his tank to grab him and do this slowly, he opens his mouth and sometimes hisses at me... he used to do this when i first got him, then he stopped and would jump right into my hand, but now he is doing it again... he recently shed and i understand they are bothered during this but he is all done shedding and still gets feisty... what could it be, once i get him in my hands, he is normal again... and climbs all over me... i can even put him on the floor or my bed and he climbs right back into my hand no feistiness, no hissing, no open mouth, but once he is in his tank he starts with the feisty behavior all over again... could this be territorial behavior? or is it just a phase... another thing i noticed is, when i bathe him, he gets real upset with me... like if i hurt hurt his feelings... lol... i dunno his personality is so random...

any info will be greatly appreciated... Thanks in advanced Guys!