グミ - Gummy
実り - Harvest, results (figuratively)
陸上部 = track and field club
文房具 - Stationery, you know like pens and stuff
グッズ
頭痛 - Headache
鬱病 = depression
運転 (うんてん) - drive / operation of a machine
E: woops sorry I forgot it can’t end with ん and only realized after posting 
Another Shiritori! That’s just part of the game @thelizard 
We forget, post a word with ん, then just start all over again!
Sticking to your 運転 theme, let’s go with:
運転免許証 - Driver’s license 
(I’m in me mum’s car broom broom
)
馬 - horse
麻酔 - Anaesthesia

睡眠不足 - Lack of sleep (I should probably do something about it…)
薬 = medicine (if you find the right one, it can help with said sleeping problems)
倫理学 - ethics
九九 - Multiplication tables, times tables
組 (くみ) - group, team, class
耳 (みみ)- Ear
湖(みずうみ) = lake
緑(みどり) Green