You might try Guttertrashe's finger strengthening trick with the rubber band .
I cant find the link where he posted it , hopefully he will see this and point you to it .
I have strong hands and fingers , but the muscles are just tight and need stretching and little by little they are limbering up , as I thought I would never be able to stretch 4 - 5 frets , but its slowly getting there by practicing
Just picked up playing myself a month or so ago .