Is there suitable work for people with PTSD with serious short term memory problems

I am having serious memory problems and it is causing serious problems in my day to day life and I am also having difficulty driving...I need to go to work but can't think of anything I can do.

Are you getting any sort of counseling or medical care for these issues? If so, your therapist, doctor, social worker, etc. probably knows you a lot better than I do, and could probably help you find something that suits you well. If not, you should consider getting some sort of treatment.

If you're in the US and your PTSD is the result of a violent crime that was reported to the police, you may be eligable for a significant amount of free counseling through the Victims of Crime program (VOC). If you served in the military, then obviously you would be eligable for medical care through the VA. Appart from those two senarios, there may well be other programs that could provide affordable or free counseling and medical care, and if it's definitely worth looking into.

I don't know what skills you have, how extensive your current difficulties are, or how well you're able to cope with them, so I can't tell you what you're likely to do well at. Try to find something that you enjoy, and work with your counselor or social worker to find alternative ways to do things that aren't a problem for you. For example, if you have problems with short-term memory, writing things down can help with many situations.