Hello dear,
The symptoms of drainage & heavy feeling on chest can be attributed to hyper responsiveness of the
respiratory tract to certain allergens.
It can be managed by taking anti
histamine preparations & avoiding exposure to cold, dust & other allergens.
The symptoms of light headedness & weakness as mentioned in your post can be due to:
1. Any pathology in the Vestibular apparatus in the
inner ear, which maintains posture & balance.
2. Any fluctuation in the blood pressure or blood sugar levels.
3. Inadequate hydration status & electrolyte balance of the body.
4. Deficiencies of certain nutrients like Iron, Vitamin B 12,
Folic acid, etc. which helps in blood formation & nerve conduction.
5. Hormonal & metabolic causes.
6. Stress, inadequate sleep, etc.
So, kindly consult your Physician and discuss regarding this.
Investigations like
complete blood count, estimation of blood pressure & blood sugar levels, CT scan of brain will be helpful to rule out any pathological cause for the symptoms.
Wishing you a Good Health.
Thanks & take care.