If you have been married for 15 years and have always exercised, I seriously doubt your husband has a problem or is trying to control you. Also, I wouldn't assume that it is emotional abuse just because someone else had such an experience.
Focus on your husband's concerns and remember he loves you and is concerned for you otherwise he wouldn't have brought this up.
He says you have become more hyper, forgetful, and spastic. He noticed that you are also working out for longer and longer periods and is concerned there is a causal relationship.
Over the long term, exercise is good for your mental health as well as your physical well being, but there is a reason your not supposed to do heavy exercise right before sleep.
Ask yourself, have you been more forgetful? Can he give you some examples? What about examples of being hyper or spastic? What about these incidents concern him?
Have you adjusted your diet to compensate for the increased exercise load? Perhaps you need to increase your intake of certain nutrients.
Have you changed any medications lately? Have the incidents he's worried about happened around your monthly cycle?
Remember he is worried about you. Something has changed to cause him concern and the only thing he can definitely put his finger on as a cause is the increased exercising. Just because he may be wrong about the cause doesn't mean he is wrong about there being something amiss which needs addressing.
I am sure he didn't mean for it to come across as a personal criticism of you. He's worried and he loves you. What else was he supposed to do? He had to talk to you about it. I'm sure it wasn't easy for him.
Give him a hug and tell him you'll think about what he said.
Perhaps the two of you could keep journals and track what is happening to you. Maybe there is another pattern he is missing which doesn't involve the exercising.
Good luck.