Hi, have you consulted your psychiatrist about this issue?one more thing is, do you visit your doctor regular because you need to be under observation when you are taking this medicines.
Hope you visit your doctor regularly, and I would recommend you to consult with doctor about this forgetfulness once.
Next, it is very common to be stressed when you have some underlying medical conditions. Like taking medications everyday is annoying for most of us for so many years. Here, I would recommend you to talk to a professional psychotherapist or psychologist.
Because in your age group, there are many burdens like kids, job, health issues, etc and these are common. Stress is very evident in this time of life. Talking to a professional will give you comfort and reduce stress. Please consider this option.
Next Steps
For the time being, try breathing exercise at least twice a day. If you forget to take medicines, set alarm.