Hi According to your complaints u say getting tired on doing gardening that could be bcoz of anemia get a haemogram done first if it's normal then go for ecg n chest xray

Take more vegetable juice without sugar and do pranyama.and see that u dont have constipation and overweight.

Get your Vit D and B12 checked ,Take supplements as required.

In my opinion I suggest u to go for full body check investigation and then consult for same..

Sir homoeopathic treatment can permanently cure this problem of yours rapidly effectively and efficiently without any side effects

The bone pain is likely caused by the osteoporosis which occurs as you grow older and bones become weaker so you should increase your amount of calcium intake. There are multiple causes for the generalised weakness, I would advise you to visit MD general medicine so that you can be physically evaluated and undergo investigations such as BP monitoring, GRBS, CBC, Vitamin B12, Vitamin D, etc to find the underlying cause and have it treated accordingly.