Vibration and wobble after replacing chain I'm having a bit of trouble getting my back wheel on after replacing my chain.

There is a wobble once per revolution. It wobbles such that, if viewed from above, it appears to spin straight for most of the revolution then veers to the right briefly then back to straight.

Further, if I spin the wheel fast enough the entire bike vibrates a LOT. It is fixed-gear so the crank and chain are spinning at this time as well.

My procedure was as follows:


Spin wheel to confirm there is no wobble before starting any work
Break old chain off with chain tool
Connect new chain around frame (but not over the cogs yet)
Loosen both nuts on back wheel so I could get the new chain on properly
Put chain on over the cogs
Tighten non-drive side nut so front of back wheel is angled a little away from drive-side
Tighten drive-side nut with half-inch slack in chain (in each dir. vertically)
Loosen non-drive side nut, let it land where it wants to, re-tighten
(The last three steps were following this guide


My searching so far suggests that the wheel may be out of true, but I believe it wasn't to begin with -- is it possible my procedure above caused it to go out of true?

Is there anything else I can check?
The axle is a single piece and it has 2 functions. The first is to secure the bike to the frame but it is also the stationary part of the hub that transfers the forces on the frame to the wheel through the wheel bearings. 

Since the axle is a single piece, Tightening the frame to axle bolts could be tightening the hub to bearing torque. The wheel will feel gritty when you rotate it.