Hi- So sorry to hear about your situation. I am a mother of an 8 year old very athletic boy who suffered a mild concussion 8 weeks ago. He wasn't diagnosed right away but the symptoms got progressively worse, mainly headaches and dizziness but he did feel sick to his stomach at times. We are seeing a concussion specialist and he says rest is the best thing for him so he only goes to school for 2-3 hours. He does rest a lot and his biggest activity is a short walk. It's been so tough for my sports guy who plays hockey, lacrosse, soccer, baseball, golf, tennis, and surf. Nothing works for his headaches like advil or tylenol so the doctor prescribed amitriptyline. He has been on this for 3 weeks but hasn't helped. I wish I could offer you more but everyone tells us that is takes a very long time for the brain to heal, sometimes 5 or 6 months! The hardest part is not knowing when. It can be so frustrating as I see the pain mu son experiences every day. He is well taken care of and I am home with him. I feel bad for you because you must have so many more responsibilities you are trying to do in addition to feeling so bad. The only advice is rest and take care of yourself. If you don't feel good from running, it just means your brain needs more time. Take Care and I hope to hear you are feeling better soon!