Welcome on Practo...As u mentioned these symptoms happened withu in past also ..So have u checked your
Sugar level , Haemogram,
Thyroid, Vision for spect etc basic test ?? More information needed from urside for solution
Next Steps
Consult doctor online or in person..
Health Tips
Nutritious home made food..
Plenty of purified water with ORS(if u r non diabetic )
Do regular Breathing exercise/ Yoga/Pranayama