Is it normal to feel multiple small lymph nodes under both arms? mostly pea sized a couple slightly bigger, can feel about 7, scanned 6 months ago and looked normal, also some tiny ones neck/ clavicle. all feel hard, mostly moveable and non tender?

Some basics: Cervical and axillary lymph node is not considered enlarged until its diameter exceeds 1.0 cm; tumor bearing nodes are firm, contender, and non movable (matted or fixed to the skin or underlying structures). I wonder if nodes you mentioned is actually located right above the clavicle or on the lower neck. Supraclavicular node deserves extra attention.