Top of foot hurting after longer runs - tendinitis?

[runningyogabooze]

I've recently been running longer distances than I'm used to and today ever since my run the top of my foot has been really painful. Almost like cramp but not.

I've googled and wonder if its tendinitis.

Anyone had this or got any advice?

TIA

I got this with a specific pair of trainers, which I promptly ditched. I skip cross-foot lacing across that bit of my foot now anyway, just in case.

It happened the first time I ran maybe 10k in them, and was terrible on my first long run.

I get this on and off, it flares up from either running or long walks I get a small swollen lump on the top of my foot midway which I believe is a tender bursa. I now also lace up with a gap where it happens and changed to stretch/elastic laces which have helped.