I am still experiencing a tingling then numbness in my right foot when running. I have just finished week 7 and it starts around 7-8 minutes before the end and by the end my foot is numb. I have been told it might be dehydration . I had one run when I drank a lot and it was a bit better (only starting 2 mins before the end) but last night I drank a lot before and some during and it was probably worse. It is hard to tell whether the heat is the issue as my longer runs have all been when it is hot. I am very much a sweaty betty! so it could be I need to drink even more. I am starting to get worried it maybe something else. It stops as soon as I do and I don't have anything like it at other times. Does anyone have any suggestions as I am not sure I could run another 3 extra minutes with little feeling in my foot!