I used a cinderblock and then went inside and used a sixty pound barbell set to do my deadlifts. I did three sets of bicep curls then I walked to work. I felt good at work and was able to keep up my pace till I ate some chips with MSG in it. My fault. I should have looked first. Also, I had some soup that probably had MSG in it. MSG makes me feel like I had too much caffeine and makes me feel exhausted. Two thousand milligrams of powdered vitamin c roused me back to life.