Use filtered water only
Take plenty of water daily
Take salads and fruits more
Go for morning and evening walk daily for good digestion and easy defication and good circulation
Recheck electrolytes after 3 wks at another lab.
The normal serum sodium level is 135-145 mEq/L. Hyponatremia is defined as a serum sodium level of less than 135 mEq/L. Joint European guidelines classify hyponatremia in adults according to serum sodium concentration, as follows: Mild: 130-134 mmol/L.Sodium levels must be corrected carefully. If your blood test results indicate you have a very low sodium level, your healthcare provider will cautiously correct the levels, to a "safe level. Intravenous (IV) fluids with a high-concentration of sodium, and/or diuretics to raise your blood sodium levels.
Self medication must be avoided and being asthmatic your mother need to carefully medicated and stop this self treatment an leave it to a doctor.
Vitamin D is slightly deficient, better to maintain from 45 to 60. Vitamin B 12 is normal at lower range, maintain it up to 800. Other values are normal. Go for Thyroid profile check.
Take nutritious diet and exercise regularly. Take Homeopathic Medicines: Alfalfa Q 10 drops Twice daily in some water before food, Ginseng Q 10 drops Twice daily in some water before food. For 15 days
Review after 15 days for follow up.
Also you can consult me in person online through Lybrate for follow up.
These values of TSH and T4 imply that her thyroid is functioning less than normal. Therefore she has to be given thyroid hormone medication from outside to bring TSH within normal limits and to bring relief to her symptoms if any. Please note that increasing iodine or chloride will not help in her case. She will have to take thyroid medication for sure. Hope this helps.