What your eperiencing is a very common side effect and one of the biggest reason people disengage from medications "emotional blunting" sure you dont feel anxious or depressed but you also dont feel anything else and that completely sucks , I know someone who had just given birth and felt nothing , like ok that's done back to watching the paint dry, that was her eureka moment ! So just take it easy be gentle with yourself have patience and wait for your friends "emotions" to come back home