Flea wrote:I suggest you go to an LBS and consult with an experienced, knowledgeable fitter for some advice. You may be able to be helped with a couple of 'tweaks' or you may need a full fit. But no-one can really advise you any further, in my view, without seeing you and your bike. A physiotherapist and/or podiatrist (particularly if they themselves ride or often treat cyclists) is the other option.
I would seriously consider this, tingles and pins & needles can mean nerve issues and they aren't good. It may be nothing serious, but either way you are going to get a lot more out of your bike if it's not hurting you to ride it!