Hello dear,
As you have mentioned about your overweight & lack of exercise, it definitely acts as a risk factor for Myo-neuropathies.
Other causes for the symptoms as mentioned in your post can be:
1. Nerve compression due to incorrect posture.
2. Any fluctuation in blood sugar & blood pressure levels.
3. Deficiency of certain nutrients like Iron, Vitamin B 12, Calcium, Magnesium, etc.
4. Inadequate hydration & nutrition status.
Symptomatic relief can be obtained with nervigenic agents (like Vit B6, B12,
Folic acid) &
multivitamin & mineral supplementation.
Physiotherapy exercise will also be helpful.
Investigations like
complete blood count, estimation of blood pressure & blood sugar levels, Thyroid profile and
Lipid profile will be helpful in clinching the diagnosis.
There is no need to worry, you will be fine.
Meanwhile, maintain adequate hydration, take a healthy balanced diet, exercise regularly & avoid stress.
Wishing a good health.
Take care.