Strange Feeling for Me

Almost fell in Walmart last night. People were here, there, everywhere, and a quick pivot left me off balance: strange feeling for me. However, earlier in the day I was helping bring a stove we bought in the house and on a step up, the load buckled my knee - backwards. It was all I could do to go down without dropping the brand new stove: strange feeling for me. And I want to do an Ironman? I want to bike 112 miles and get off the bike and run 26 miles on that knee? Serious doubts. How does one handle an unstable knee? How does one deal with the pain all day and half the night? So, to escape the "strange feelings for me," I just retreat to my comfort zone; that is, just keep moving forward; one unstable step after another.