I’ve been taking Tecfidera for almost three weeks now, this week being my first week on the full dose. I’ve had a mild sore heads most days whilst having been on it but now I feel like it’s worse. It could very likely be a tension headache, tiredness or dehydration it’s hard to pintpoint. Just wondered if anyone else had this as a side effect as it’s not listed as a common one. I’m also very scared of PML even though I am JCV- at the moment. But if anyone’s dealt with this please let me know! Thanks!