I took it to the mechanic they fix the oil pressure seal, ignition coil, balljoint on right side. A wek after the car started to shake when you put it into drive and up to 35 miles per hour. After that starts to shake a little less and it stops shaking at 50 miles per hour. I want to know what could this new issue be and if could be related to the previos fixes. Should I trust that mechanic again?