Just what I was going to say, Maw.
I don't have any problem confusing them because the German differentiates and there is no way you can mix them up there.
"Legen" is pronounced "Lay-gen" and can only be used in conjunction with an object (including, of course, a reflexive pronoun). It describes a movement.
"Liegen" is the same sort of word as "stehen", to stand, sitzen, "to sit". They are intransitive and do not require an object. In fact, they just can't have an object, and stand alone.
Ich liege (I am lying (down)) is a complete sentence.
Ich lege (I am laying) requires something to finish the sentence.