I'm 31 not that unfit but not fit either. . walk to work and back. do school run walk there and back. and sometimes have an half hour walk with my sister. but for ages I have not been going walks with my sister but today I did and it killed me. my calfs,shins and ankles were killing achy. had to keep stopping. but also whats worring me is that the past 3 weeks walking to work wich is at 5 45am I only gotta walk a few yards and my calfs,shins and ankles are achy. I do walk uphill wich I know won,t help. same as today a bit walking uphills. but not steep. don,t know wots wrong. I,ve posted on here bout pulsating,throbbing pain like heartbeat in back of my head on walking fast or running upstairs. I'm nearly 13stone. that's why I,ve started my walks back up. anyone else have/had this. scared to go to doctors.