A couple of weeks more into riding,a regular 12m a night & most pains are improving,except my back/shoulders.I am getting a pain on the bump just below my neck,is this a posture or bike fit problem?Riding a hardtail Giant hybrid.
It can take a long time for your 'body' to get used to extra cycling some times.
A number of years back, I had a 'quiet' spell - i.e. not riding as much as I did, or do now. Getting back into it was painful - my back would only last an hour, before I was really sore - despite having had the bike over 10 years. Soon resolved it's self as I rode more and more. So double check you are comfortable, and see how you go.
i have a set of basic measurements , that i always adjust my bikes to first before i start riding them and 9 times out 10its not far away .
so get comfy and measure hieght of bars & saddle from ground up along with fr of saddle to centre of bars and then saddle to bottom of crank stroke , then adjust where poss any other bike you ride to that position .
One problem I had at first was my tendancy to hunch up rather than relax and keep the shoulders lower. the result was pain around that area base of the neck and across the shoulder blades - bad posture in my case.