Anyone else experience meds suddenly losing effect?

I’ve been on concerta 36mg now for about 6 months. Before that I was on aduvanz 40mg for a bout a year. I had to stop the aduvanz due to it making me extremely irritable and causing terrible stomach issues.

I’m extremely sensitive to stimulant medication, and both aduvanz 50mg and concerta 56mg gives me really bad palpitations and makes my heart rate skyrocket, plus I can’t do anything cardio related due to same symptoms. But the dose concerta I’ve been using now has been ok, a little low, but has had enough effect so that I can focus at work, but the last few weeks it has lost all effect.

I take my morning dose at 8am with an egg for breakfast. But I am like an undiagnosed 7 year old boy in school all day in work, twirling my chair, walking around, playing on my phone, doing everything but my job, and it’s getting bad. Has anyone experienced this? I have a doctors appointment on Monday and I was thinking of asking if we can try Ritalin, but are there risks of this happening with that too? Any help or experiences are welcome here, because I’m gonna end up losing my job if this continues.