u/Competitive-News3625

Help! I just shifted from park to drive to exit my parking lot and heard some insane clunking in the trunk. Parked and looked because I thought there was something stuck under my car. I genuinely didnt know what to look for or do otherwise, so continued driving. Once I was accelerated and on the road it sounded fine. Parked at work and heard similar sound. Looked online and hearing that it may be motor mount or transmission mount? Open for further confirmation before I look for a independent mechanic.
Thanks in advance.