Aura & Muscle Relaxers

What a weird morning for me.  I feel on my back about a week and half ago; slipped on ice!  I took quite the fall and at the time it probably looked quite funny if anyone happened to see it – my shoe went flying – but my back – UGH!  It's killing me still.  I took one muscle relaxer last night which really helped my back and to finally get some sleep.  BUT now this morning I had this really strange vision aura.  I don't ever get migraines so am not sure what that's about.  Will have to keep an eye on it and make sure it's nothing worse.  I also made sure to eat something as well to make sure it wasn't due to low blood sugar or something.  And the muscle relaxer – WHOA – I don't think I've ever been so sleepy.  I don't care for them @ all – it gave me that general feeling of weirdness when I woke up this morning.