Fatigue and nausea not stopping, anyone else?

Coming up to 15 weeks and still struggling with nausea and fatigue. I’ve just woken up from a 3 hour nap and can’t wait to go back to sleep!! And the nausea just hasn’t stopped either, despite being on anti sickness tablets. I’m still finding the afternoons and evenings awful and can’t seem to do anything. Really thought it would ease by now, is anyone else in second trimester still struggling ?