That's stress. You brain is so intent on making sure you're not in danger that it overlooks small bits of information. That happened to me after I had the congestive heart failure and the stroke. I was afraid it was caused by the stroke - my brain is the most important part of me - and the neurologist told me it was stress, try "going for a walk , or meditating." (I don't go for walks. I'm a very bad Pagan - I hate the outdoors! It's always too sunny or it's raining, too hot or too cold, the air is full of allergens and biting insects (and diesel truck exhaust), the ground is uneven and makes me stumble. I do know how to meditate, but the effect only lasts a short while afterwards. The neurologist prescribed medical cannabis, which is just fine with me.
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