Bigger muscles? How, by developing tendonitis and not being able to lift? IDIOT!
When I was a skinny beginner (like you are) I got DOMS that lasted 5-6 days too.
Muscle imbalance IS a good reason to not do one legged exercises. But for two weeks, it's fine. There is a reason these one legged exercises exist after all.
However, if I were to not rehab my hamstring correctly, pushed on and tore/pulled it worse, and ended up with a debilitating long term injury - then you can bet your arse that muscle imbalance WOULD be a problem.