Simple answer: no
There is a heretical teaching that even when Jesus walked the earth, he was still fully God and only among us in a very superficial way.
Like many heretical teachings, there is usually a well-meaning aspect to the teaching. This teaching tries to address the perceived contradiction that someone who is fully God cannot be fully man. This teaching attempts to correct the possible contradiction by simply conceding that Jesus wasn't fully man.
However, we know this is not the case. Here are several proof texts with regards to Jesus being fully man in addition to being fully God:
For we do not have a high priest who cannot sympathize with our weaknesses, but One who has been tempted in all things as we are, yet without sin.
Hebrews 4:15
One of the main reason this is heretical is that it detracts from the horror that was the cross. This teaching allows Jesus to just switch off the pain and suffering so that the impact of the crucifixion wasn't as bad as it really was.
