Peripheral English /ç/

[ulvesang]

I've noticed that I produce [ç] when pronouncing (a very few) certain words-- always marked by the digraph ch-- such as in Murdoch, loch (not so uncommon a pronunciation), and lichen. I don't believe it is universal among English sepakers, because I've been made fun of for it (namely the third example). Of course, then, I'd like to vindicate myself and prove that I'm not just weird.

Is this some sort of orthographic/foreign-loanword-ish hypercorrection, or does /ç/ actually occur in some modern English dialects/idiolects?-- other than, conservative versions of e.g. Scots, I mean.

EDIT: I am an idiot: loch and Murdoch have [x] (although lichen does have [ç])