Hi,
This is a good news that you don't have pain. But, the
numbness of the foot is also an important symptom. As my specialty directly relates to
peripheral nervous system, I see patients with similar symptoms very often.
One problem could be due to the irritation of lower lumbar and/or upper sacral nerve roots which can result in
paresthesia or numbness of the toes, but as you did not mention a
low back pain or gluteal pain, this is a remote possibility.
Another cause which is seen quite frequently in long-distance walkers/runners is the compression of interosseous nerves of the feet.
Especially if your shoes are not specifically designed for long distance walking/running. Don't worry about a
neuroma, although it is possible also to have a neuroma in the foot, their major symptom is mostly the pain.
Even if a neuroma exists it is not very important. The first advice is to discontinue running for 3-4 weeks and let your feet heel. Also, search for tender spots over the foot.
If present, a few sessions of
physiotherapy (if possible including
laser therapy) could help. If your problem persists despite rest after a few days, a specialist should make a more detailed exam.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Hooman Mahmoudi, Neurologist