After a visit to Paphos 4 years ago my left leg was swollen and my GP put me on warfarin for 6 months.
A year later I had Deep Vein Thrombosis and my GP put me on warfarin for life. I go to the surgery every week or fortnight (depending on the reading, which varies between 1.8 and 3.5). Possibly because I am 90, I am visited at home, which saves me a journey. I have no problem with warfarin, apart from forgetting whether I should take 4 or 5 as my last check was 4/5 on different days. I have not experienced any bleeding problems and I am told that a change of diet could affect the reading variations.