dear user first i would like to tell you that these symptoms you have refer mainly to have throat infection bacterial or viral.....in your case mostly you have streptococcal infection that need investigation with ASO test........if you have stress or anxiety it causes impairment of immunity and recurrent infection............ we require blood test or throat swab if symptoms get severe or recurrent infection but now you not need that.........if prolonged or recurrent occur you can do antibiotic sensitivity test as selection of antibiotic according to sensitivity has great role in strept infection because the bacteria may resist antibiotics........... about swelling of glands you have ...most commonly cause that matches your words is tonsillitis accompaigned with swelling lymph nodes of neck......bacterial infection of the tonsills causes fatigue and swelling around temple ,muscle pain,mild fever ...symptoms can vary from person to another..... wish you healthy life