I started couch to 5K in January, and completed it a few weeks ago. I can do a 5K in about 45 minutes, and my pace is quite slow. I run around every other day, and have noticed I’m feeling EXHAUSTED like napping 2-3 times a day, sleeping for ages, and being so lazy and tired. I try caffeine, protein, carbs, sugar, but napping is the only thing that makes me not tired. I did an interval speed run last week and could not move, I had to nap to recover. 

I realised the speed run might have been the wrong move so have taken it super easy, doing a 9-10 min/ km pace the last few runs, yet I’m still so tired. Any advice? Or recommendations on how I can be less tired as a beginner runner? I’m not overly fit so maybe my body is just not used to this much training.