i was off sick for stress leave with doctors note and back with limited memory and they fired me

Thank you for your question. You have been wrongfully dismissed and you are owed severance. I would encourage you to visit the severance pay calculator our firm has developed to see what you are owed (www.SeverancePayCalculator.com). In addition to severance you may be entitled to human rights damages given that you were terminated while suffering from an illness. I would strongly encourage you to call us and set up a free and confidential consultation with one of our employment lawyers.