Good day. Dandruff can worsen after stress or environmental factors. If not resolving, advised to consult Dermatologist for proper evaluation and treatment with medicines. Hairfall can be due to multiple reasons like scalp and hair issues and also internal nutritional deficiencies, hormonal problems etc. These need to be evaluated if relevant for you. Proper care by avoiding heat or chemicals on hair and using pH balanced shampoo and balanced nutritious diet will certainly help. Regards, Dr. Vaishalee Kirane www.skinhairdoc.com