Good plans. Loosing weight will help with Sleep Apnea.
As general rule, "normal size" meal are safely eaten after a re-feeding period long about the same length of the WF itself ... After the fast you would probably find reasonable to stick with smaller meals, ... since what we consider normal size in NA, is by far not normal ... also your stomach will be smaller, so if you do not push it, you will find to be satisfied with less food, than previously. This will help keep the weight off ....