1987 560SEL problems with jerking when accelarating

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Hello and i hope this is the proper place to ask for help just found this forum while searching for some answers. I own a 1987 560SEL my problem is lets say i get onto the highway accelerate 1-60 goes smooth then take foot off gas and it auto breaks when not on the gas which i have gathered is common in Mercedes. So it will slow from like 60 to 45 pretty fast and then when i give it more gas there is an aggressive jerk (from the transmission?) from which i assume is it kicking back into a higher gear. Is this normal? Thank you in advance.