Hi Azlin. Welcome to NT. I'm so sorry you have to be here. I got diagnosed with MS without having any O-bands (normal spinal tap). I also went to the Mayo Clinic. They have a watch and wait approach which is different from some other neurologists' suggestions (such as Elliot Frohman, MD) who advocate treating soon if the signs seem to point to MS. It sounds like you have a lot of symptoms due to heat (I.e. the summer). I hope your Mayo experience was good. I didn't wind up with a very nice doctor when I was there. All the above advice is excellent! Good luck.