Hi ChannelGSW,
Of course I don’t know what may be happening since I can’t feel what you feel on your mattress (and I don’t know if you think it’s too soft or too firm) but if it’s too firm then post #2 here has some suggestions that may be helpful. Post #2 here also has more information about the different “symptoms” that people may experience on a mattress that may also be helpful to assess why your mattress isn’t working as well for you as you hoped.
Since your “symptoms” seem to be getting worse and in that case I don’t know if you are comfortable with waiting for a few weeks before making any changes … the first thing I would suggest is talking to European Sleep Works (in person or on the phone) in much more detail since they are more knowledgeable and have more experience with their mattresses and the options they have available than anyone else and are in the best position to offer some suggestions that may be helpful based on their experience with other customers that have had similar issues to you on your mattress.
Phoenix