I am now biking between 10-15km 3 times a week (I started biking again at the end of January after not biking for 8 or 9 months). And I'm going to the gym once or twice a week to do light weights. But I still have weird sensations of tightness in both my right leg, and my right forearm and wrist. Having these sensations still makes me fearful while doing activity, and also makes me hesitant to increase the amount of activity I'm doing. I find that meditating and doing body scans are the most effective way for me to accept these sensations as not being harmful.