Ff

Fatigue – Persistent tiredness or exhaustion, even after rest.
Fever – Elevated body temperature, often due to infection.
Facial swelling – Puffiness or inflammation in the face.
Frequent infections – Recurring illnesses due to a weakened immune system.
Fragile nails – Weak, brittle nails that break easily.
Frequent urination – Needing to urinate often, possibly due to diabetes or bladder issues.
Foot pain – Discomfort or aching in the feet, often from injury or inflammation.
Flushed skin – Reddening of the skin, sometimes due to heat, alcohol, or high blood pressure.
Flaky scalp (Dandruff) – Dry, peeling skin on the scalp.
Frozen shoulder – Stiffness and pain in the shoulder joint.
Food intolerance – Adverse reactions to certain foods, such as bloating or nausea.
Facial tics – Involuntary muscle spasms in the face.
Frequent headaches – Regular or chronic head pain.
Flatulence – Excessive gas in the digestive system.
Fainting (Syncope) – Sudden loss of consciousness due to low blood pressure or other issues.
Foot numbness – Loss of sensation in the feet, often linked to nerve damage or poor circulation.

Forgetfulness – Difficulty remembering things, from minor details to important information.
Fearfulness – Constant or excessive feelings of fear.
Frustration intolerance – Difficulty coping with small obstacles or challenges.
Frequent mood swings – Rapid emotional changes.
Fidgeting – Restlessness, constant movement, or trouble sitting still (common in ADHD).
Fixation on details – Obsessive focus on small details, sometimes seen in OCD or perfectionism.
Feeling of impending doom – A strong sense that something bad is about to happen (often linked to anxiety or panic attacks).
Flashbacks – Re-experiencing past traumatic events as if they are happening again.
Fear of abandonment – Intense worry about being left alone or rejected.
Feelings of emptiness – A sense of inner void or lack of purpose.
Flight of ideas – Racing thoughts that jump from one topic to another, often seen in mania.
False memories – Remembering things that didn't happen or misremembering details.