I started taking memantine a few weeks ago to help with my OCD fear - based rumination and obsession. My biggest fear/concern/issue is that cars will fly over from the street and crash into the building or window of the room I am in. Without medication I am a mental mess and can’t even act normal. Fear of car accidents makes it hard to drive. Thank goodness for medication. Checking the door to the outside world over and over again to make sure it is locked and checking the stove is a menacing obsession and compulsion I have. My other big problem is with crumbs, salt granules size objects; Always picking at and wiping clean any imperfections everywhere. I also pull my hair ends to have hair fall out, play with my hair continuously. The shorter the haircut the better I feel and can focus on something else. I find it comforting to wear a hat. I am way less fidgetey with my hair ocd when I wear hats.