Well it seems I spoke too soon on the injury

one week in and I did something to my right foot that left it painful to keep weight on it haha. Odd thing was I didn't do anything unusual during the run and it didn't hurt until several hours afterward. Took it to doctor and he couldn't find anything wrong though, even with xrays, so they just have me on two weeks of ibuprofen 800 and orders to stay off it as much as possible.
So knowing that I'll have to restart the regimen after that (I still really want to do it, even what little I did felt really good!), I figure I might as well come in equipped and avoid other (and potentially more dangerous) problems! So I have questions.
1) Shoes are obviously important; a friend suggested finding someplace to have a gait analysis done to find the 'right pair'. Is that useful or just a lot of smoke and mirrors? Is there a particular variety of the process that's reliable (google searches show different methods, from just arch measurement to full biometrics; and of course they all decry eachother as being inaccurate or a waste of time), or even better, recommendations for a shop in the greater DC area that does it well?
2) Other gear recs in general I guess, I've been wearing some loose fit slick track pants that are comfortable, a loose fit t-shirt and just whatever socks I have on that day. I'm not savvy enough to know if I'm doing anything wrong here or what would be prudent to avoid injury or will really make a big efficiency difference as just essentially a casual startup runner. I know for sure I'd like some kind of gear that will let me run in the rain (I don't mind rain itself, I just don't like the soggy clothes feeling, if that helps distinguish anything) as well as just some kind of general pullover with secure pockets so I can actually carry essentials without feeling like they're going to fly out of my pocket. Cold weather gear is another consideration but I'll worry about that later.
I'm hesitant to ask these questions of people who stand to directly profit from their 'assistance', so hoping I can get some insight here and just go shopping for exactly what I need rather than end up getting suckered.
