Hi Mikejl, glad to know that you are getting more comfortable with the earmold already.
I remember having problems on those days one of my ear canal was sore - I’ll just let it rest and recover for a day or 2. It was frustrating - I did not expect this level of adjustment. It was then that I experimented with lubrication.
For clarification, mine is transparent, hard micro earmold so maybe my experience is quite different from yours.
And yes, they do kind of inch out through the day - as I talk, eat, drink (or yawn!) - anything to do with lots of jaw movement - I do sense the blockage coming on and have to adjust the seating.
Looking forward to your cold clearing off and to better experience with your HA - what we, in this forum are asking for, is to be able to hear well, having invested in the hearing devices and to share our findings.
All The Best 
YVR