Is shaky feeling in humerus fracture normal after cast?

Plantar fasciitis and Achilles tendonitis can be quite bothersome, but there are several ways to ease the pain. Try stretching exercises for your calves and feet, wear supportive shoes, use orthotic inserts, apply ice to reduce inflammation, and take over-the-counter pain relievers. It's also important to avoid activities that make the pain worse. 

Knee crepitus can be from multiple causes. Painless crepitus can be ignored. So, I won't advice for crepitus knee treatment as such.. Crepitus from knee cap problems can be cured with hip and knee strengthening. Crepitus from cartilage irregularities or loose pieces often need minor keyhole surgery. Painful crepitus from arthritis is initially treated with physical therapy and surgery when therapy stops helping. 

Probably the effects of osteoporosis are coming out in you. Weak and brittle bones are the reason why it is easier to faint and die. In addition, it can lead to unevolved discomfort in some parts of your body. One of the causes of osteoporosis is aging, not getting enough calcium and vitamin D, or taking some medications. The main components include the introduction of calcium and vitamin D supplements, bone-preserving medicine, and participation in regular activities aimed at enhancing the moisture content of bones.

At night, it can be difficult to get to the bathroom due to knee pain, making it hard to get up, and accidents might happen. However, this is not a solution for the knee condition itself, but it can help manage the issue until the knee improves. Always consult your doctor to find the best treatment option for your knee problems.

This condition can be tried with acupuncture, as per acupuncture theory acupuncture needles balances the imbalanced meridian thereby giving relief in majority of the symptoms. 
Acupuncture, Acupressure, Seed therapy, electro magnet therapy, colour therapy gives miraculous results.

It's essential to consult a professional for a proper evaluation. In the meantime try gentle exercises, proper posture, heat/ice packs, and pain relief medications.

The knee pain on the outer side might be from some trauma or strain. The hurting of the neck and the spinal cord can be from bad posturing and muscle tension. You need to let that affected region recover, apply ice to the area, and do light stretching with the injured or painful part. Always keep your posture in the right way and make more decisions to reach out to a physiotherapist as a part of your strategy to get better quicker.