I am thinking of going back to university to study biomedical science. I graduated from medical school in 1994 and worked in the NHS and then for a charity but I don't want to go back into clinical medicine. I was always interested in pathology and would like to specialise in medical microbiology but need to go back to the beginning to get my lab skills up to date. I am 37 with three dds aged 7,6 and 3. Am I mad or could I manage it?