Problems with my hands durning & after riding

I get this when using a jack hammer or a lot of lump hammering..
i also get it a bit if i grip the bars too tight..

all i can suggest is losen your grip a little..i find thick grips aggravated the issue..
im 50 and worked outside all my life so i put it down to wear and tear..

maybe get a medicle opinion too..
good luck

Cheers troops, I will have a look at the set up today and see if I'm over stretched to the bars. 

I actually find if I loosen my grip it makes it worse once it has started. I find that by doing that the vibration of my fingers bouncing off of the bars aggravates it. Once it has started to get sore on the trail i can only grip tight to stop it getting worse but then I get arm pump haha. Doomed if I do and doomed if I don't it seems. 

Cheers for the feedback, I will have a look into this and might even pay a visit to the doctors who will no doubt just say...looks fine to me. Always find them useless to be honest, to get anywhere with them you need to bug them, get a physio to send a letter to them and bug them more before they accept there is a problem. That was my experience with my neck. Only now 9 months down the line are they accepting that there is is a problem after a raft of private physio and letters sent by the physio. 

That's a good read, thanks for sharing. I checked the saddle and stem measure earlier and it was as you said it should be.

Working on the motorbike today and using a socket wrench I could really feel it. Need to try something as this could really become an issue, it may even just be teething issues picking up biking and not being accustomed to smashing rocky sections and roots at pace.

My mate gets bad circulation in his hands especially when its cold conditions, his hands go numb and he can't feel the bars, not suggesting that's what it is but it's his wee medical thing but it led me to thinking about arthritis which my wife has in her knuckles, they swell up and get really painful, just fingers not thumbs, it's seen as an older persons thing but can affect any age really
www.arthritis.org/about-arthritis/where-it-hurts/wrist-hand-and-finger-pain/

I have Raynaud's Phenomenon, which is similar to arthritis, infact the Dr said it was arthritis but as soon as i saw the specialist he said it was Raynaud's, basically any slight temperature drop my hands go blue, my finger tips go white, then they sieze up and won't move, if it gets really bad the tips of my fingers start splitting and bleeding.

Changing from lock on to Oury wire on grips have made a massive difference for me. My hands were torn to shreds after every ride with ODI lock on's.

I have never felt a more comfortable grip than the ODI Yeti's, see if you can spot someone with em on the bike and err..have a feel.

havent read every reply but my mate gets it and its comon in riders. its the ulner nerve in the hand that gets irritated when riding. specialized do the bg gloves with a special palm pad that supports the ulner nerve and takes it off not completely but partially. look at these.

Thanks a lot for this guys.

I have since been back to glentress and Inners along wth local rides and unfortunately the only way so far to reduce the pain is to ride slower. However, that's not on the agenda as I like speed so I will look into both of the above as I am willing to give anything a try to see if it helps.

Cheers guys