you have mentioned numbness in the inner part of the left foot as your main symptom. most commonly numbness is a manifestation of a nerve involvement it can be compression of the nerve at an anatomical site like in back or anywhere along the course of the nerve or it may be a manifestation of a systemic disease like diabetes or any condition that leads to what we call as neuropathy. now your trigger has been the yoga courses which you do on a regular basis every year but you have done may be for a prolonged period this year. being an orthopaedic surgeon i may not be able to guide you anything regarding yoga and its usefulness but it is logical to stop all these postures till your condition settles and improves. my guess is that there has been some prolonged compression during your classes or there could be an entrapment somewhere along the course of your nerve. i need to know from you: whether you have any back pain? is there any radiating pain from the spine region all along the course of your limb? apart from numbness are there any other symptoms of neurological involvement like weakness paresthesias burning sensations etc. also present? if the answers to above questions are no my suggestion to you will be to wait for a few days and start with medications for neuropathic symptoms like pregabalin or gabapentin along with vitamin b 12 supplementation and it is a good possibility that your symptoms may subside over next 4-6 weeks because there might be nerve neuropraxia (mid nerve injury). in case your symptoms do not improve or if they increase then i suggest you to get few blood tests done and nerve conduction studies to look for any compressive pathology. get back to an orthopaedician and traumatologist online for further queries --> <link>
i have numbness in my left foot. what could have caused this?