I have been off work on maternity leave due too having a baby (who arrived 2&a half months premature) once arrivin back to work i asked about different working hours personel said leave it with her & she will get back to me in the mean time my boss has told me 2 weeks & you are back on shift I reacted to this there was a heated conversation to which he told me since I have had THAT baby he has been struggling to this I was not happy & told him to shove his job & walked out I was obviously stressed when saying this went straight to the doctors who gave me a sick note for stress but my boss has decided to accept my resignation is there anyway I can take this further obviously I have been under a lot of stress lately?