Hi!
Immunity depends on many factors like stress, environment, eating habits, smoking/alcohol and physical activity.
Take fresh fruit, raw veggies, drink 3 litres of water , add good proteins like pulses, sprouts and a handful of dry fruits daily.
Due to the lockdown, it’s best to take whatever is available in your area.
Supplements can be prescribed after a detailed assessment of your food habits and daily routine. You may have
vitamin deficiency as you have back pain and muscle fatigue.
Next Steps
Stay hydrated, eat well, consult on practo.com for further advice
Health Tips
Avoid taking over the counter multivitamins/medication/supplements.